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King KP, Humiston T, Gowey MA, Murdaugh DL, Dutton GR, Lansing AH. A biobehavioural and social-structural model of inflammation and executive function in pediatric chronic health conditions. Health Psychol Rev 2024; 18:24-40. [PMID: 36581801 PMCID: PMC10307927 DOI: 10.1080/17437199.2022.2162430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 12/20/2022] [Indexed: 12/31/2022]
Abstract
Evidence indicates that pediatric chronic health conditions (CHCs) often impair executive functioning (EF) and impaired EF undermines pediatric CHC management. This bidirectional relationship likely occurs due to biobehavioural and social-structural factors that serve to maintain this feedback loop. Specifically, biobehavioural research suggests that inflammation may sustain a feedback loop that links together increased CHC severity, challenges with EF, and lower engagement in health promoting behaviours. Experiencing social and environmental inequity also maintains pressure on this feedback loop as experiencing inequities is associated with greater inflammation, increased CHC severity, as well as challenges with EF and engagement in health promoting behaviours. Amidst this growing body of research, a model of biobehavioural and social-structural factors that centres inflammation and EF is warranted to better identify individual and structural targets to ameliorate the effects of CHCs on children, families, and society at large. This paper proposes this model, reviews relevant literature, and delineates actionable research and clinical implications.
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Affiliation(s)
| | - Tori Humiston
- University of Vermont, Department of Psychological Sciences
| | - Marissa A. Gowey
- University of Alabama-Birmingham School of Medicine, Department of Pediatrics
| | - Donna L. Murdaugh
- University of Alabama-Birmingham School of Medicine, Department of Pediatrics
| | - Gareth R. Dutton
- University of Alabama-Birmingham School of Medicine, Department of Preventive Medicine
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2
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Schildroth S, Bauer JA, Friedman A, Austin C, Coull BA, Placidi D, White RF, Smith D, Wright RO, Lucchini RG, Arora M, Horton M, Claus Henn B. Early life manganese exposure and reported attention-related behaviors in Italian adolescents. Environ Epidemiol 2023; 7:e274. [PMID: 38912396 PMCID: PMC11189689 DOI: 10.1097/ee9.0000000000000274] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 09/19/2023] [Indexed: 06/25/2024] Open
Abstract
Background Manganese (Mn) is an essential nutrient and neurotoxicant, and the neurodevelopmental effects of Mn may depend on exposure timing. Less research has quantitatively compared the impact of Mn exposure on neurodevelopment across exposure periods. Methods We used data from 125 Italian adolescents (10-14 years) from the Public Health Impact of Metals Exposure Study to estimate prospective associations of Mn in three early life exposure periods with adolescent attention-related behaviors. Mn was quantified in deciduous teeth using laser ablation-inductively coupled plasma-mass spectrometry to represent prenatal (2nd trimester-birth), postnatal (birth ~1.5 years), and childhood (~1.5-6 years) exposure. Attention-related behavior was evaluated using the Conners Behavior Rating Scales in adolescence. We used multivariable linear regression models to quantify associations between Mn in each exposure period, and multiple informant models to compare associations across exposure periods. Results Median tooth Mn levels (normalized to calcium) were 0.4 area under the curve (AUC) 55Mn:43Ca × 104, 0.1 AUC 55Mn:43Ca × 104, and 0.0006 55Mn:43Ca for the prenatal, postnatal, and childhood periods. A doubling in prenatal tooth Mn levels was associated with 5.3% (95% confidence intervals [CI] = -10.3%, 0.0%) lower (i.e., better) teacher-reported inattention scores, whereas a doubling in postnatal tooth Mn levels was associated with 4.5% (95% CI = -9.3%, 0.6%) and 4.6% (95% CI = -9.5%, 0.6%) lower parent-reported inattention and attention deficit/hyperactivity disorder index scores, respectively. Childhood Mn was not beneficially associated with reported attention-related behaviors. Conclusion Protective associations in the prenatal and postnatal periods suggest Mn is beneficial for attention-related behavior, but not in the childhood period.
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Affiliation(s)
- Samantha Schildroth
- Department of Environmental Health, Boston University School of Public Health, Boston, Massachusetts
| | - Julia Anglen Bauer
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Lebanon, New Hampshire
| | - Alexa Friedman
- Department of Environmental Health, Boston University School of Public Health, Boston, Massachusetts
| | - Christine Austin
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York City, New York
| | - Brent A. Coull
- Department of Biostatistics, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
| | - Donatella Placidi
- Department of Occupational Health, University of Brescia, Brescia, Italy
| | - Roberta F. White
- Department of Environmental Health, Boston University School of Public Health, Boston, Massachusetts
- Department of Neurology, Boston University, Boston, Massachusetts
| | - Donald Smith
- Department of Microbiology and Environmental Toxicology, University of California Santa Cruz, Santa Cruz, California
| | - Robert O. Wright
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York City, New York
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York City, New York
| | - Roberto G. Lucchini
- Department of Environmental Health Sciences, Florida International University, Miami, Florida
| | - Manish Arora
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York City, New York
| | - Megan Horton
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York City, New York
| | - Birgit Claus Henn
- Department of Environmental Health, Boston University School of Public Health, Boston, Massachusetts
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3
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Baj J, Flieger W, Barbachowska A, Kowalska B, Flieger M, Forma A, Teresiński G, Portincasa P, Buszewicz G, Radzikowska-Büchner E, Flieger J. Consequences of Disturbing Manganese Homeostasis. Int J Mol Sci 2023; 24:14959. [PMID: 37834407 PMCID: PMC10573482 DOI: 10.3390/ijms241914959] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 10/01/2023] [Accepted: 10/04/2023] [Indexed: 10/15/2023] Open
Abstract
Manganese (Mn) is an essential trace element with unique functions in the body; it acts as a cofactor for many enzymes involved in energy metabolism, the endogenous antioxidant enzyme systems, neurotransmitter production, and the regulation of reproductive hormones. However, overexposure to Mn is toxic, particularly to the central nervous system (CNS) due to it causing the progressive destruction of nerve cells. Exposure to manganese is widespread and occurs by inhalation, ingestion, or dermal contact. Associations have been observed between Mn accumulation and neurodegenerative diseases such as manganism, Alzheimer's disease, Parkinson's disease, Huntington's disease, and amyotrophic lateral sclerosis. People with genetic diseases associated with a mutation in the gene associated with impaired Mn excretion, kidney disease, iron deficiency, or a vegetarian diet are at particular risk of excessive exposure to Mn. This review has collected data on the current knowledge of the source of Mn exposure, the experimental data supporting the dispersive accumulation of Mn in the brain, the controversies surrounding the reference values of biomarkers related to Mn status in different matrices, and the competitiveness of Mn with other metals, such as iron (Fe), magnesium (Mg), zinc (Zn), copper (Cu), lead (Pb), calcium (Ca). The disturbed homeostasis of Mn in the body has been connected with susceptibility to neurodegenerative diseases, fertility, and infectious diseases. The current evidence on the involvement of Mn in metabolic diseases, such as type 2 diabetes mellitus/insulin resistance, osteoporosis, obesity, atherosclerosis, and non-alcoholic fatty liver disease, was collected and discussed.
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Affiliation(s)
- Jacek Baj
- Chair and Department of Anatomy, Medical University of Lublin, 20-090 Lublin, Poland; (W.F.); (A.F.)
| | - Wojciech Flieger
- Chair and Department of Anatomy, Medical University of Lublin, 20-090 Lublin, Poland; (W.F.); (A.F.)
| | - Aleksandra Barbachowska
- Department of Plastic, Reconstructive and Burn Surgery, Medical University of Lublin, 21-010 Łęczna, Poland;
| | - Beata Kowalska
- Department of Water Supply and Wastewater Disposal, Lublin University of Technology, 20-618 Lublin, Poland;
| | - Michał Flieger
- Chair and Department of Forensic Medicine, Medical University of Lublin, 20-090 Lublin, Poland; (M.F.); (G.T.); (G.B.)
| | - Alicja Forma
- Chair and Department of Anatomy, Medical University of Lublin, 20-090 Lublin, Poland; (W.F.); (A.F.)
| | - Grzegorz Teresiński
- Chair and Department of Forensic Medicine, Medical University of Lublin, 20-090 Lublin, Poland; (M.F.); (G.T.); (G.B.)
| | - Piero Portincasa
- Clinica Medica A. Murri, Department of Biomedical Sciences & Human Oncology, Medical School, University of Bari, 70124 Bari, Italy;
| | - Grzegorz Buszewicz
- Chair and Department of Forensic Medicine, Medical University of Lublin, 20-090 Lublin, Poland; (M.F.); (G.T.); (G.B.)
| | | | - Jolanta Flieger
- Department of Analytical Chemistry, Medical University of Lublin, 20-093 Lublin, Poland
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4
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Mahmood S, Tanvir EM, Komarova T, Islam MN, Khatun M, Hossain MF, Ng JC, Whitfield KM, Hossain MS, Khalil MI, Shaw PN. Relationships between growth indicators, liver and kidney function markers, and blood concentrations of essential and potentially toxic elements in environmentally exposed young children. Int J Hyg Environ Health 2023; 253:114237. [PMID: 37544043 DOI: 10.1016/j.ijheh.2023.114237] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 07/08/2023] [Accepted: 07/28/2023] [Indexed: 08/08/2023]
Abstract
Environmental exposure to multiple metals and metalloids is widespread, leading to a global concern relating to the adverse health effects of mixed-metals exposure, especially in young children living around industrial areas. This study aimed to quantify the concentrations of essential and potentially toxic elements in blood and to examine the potential associations between multiple elements exposures, growth determinants, and liver and kidney function biomarkers in children living in several industrial areas in Dhaka, Bangladesh. The blood distribution of 20 trace elements As, Ag, Bi, Br, Cd, Co, Cr, Cu, I, Mn, Hg, Mo, Ni, Pb, Se, Sb, Tl, V, U, and Zn, growth determinants such as body mass index and body fats, blood pressure, liver and kidney injury biomarkers including serum alanine aminotransferase and alkaline phosphatase activities, serum calcium, and creatinine levels, blood urea nitrogen, and hemoglobin concentrations, and glomerular filtration rate were measured in 141 children, aged six to 16 years. Among these elements, blood concentrations of Ag, U, V, Cr, Cd, Sb, and Bi were measured below LOQs and excluded from subsequent statistical analysis. This comprehensive study revealed that blood concentrations of these elements in children, living in industrial areas, exceeded critical reference values to varying extents; elevated exposure to As, Pb, Br, Cu, and Se was found in children living in multiple industrial areas. A significant positive association between elevated blood Tl concentration and obesity (β = 0.300, p = 0.007) and an inverse relationship between lower As concentration and underweight (β = -0.351, p < 0.001) compared to healthy weight children indicate that chronic exposure to Tl and As may influence the metabolic burden and physical growth in children. Concentration-dependent positive associations were observed between the blood concentrations of Cu, Se, and Br and hepatic- and renal dysfunction biomarkers, an inverse association with blood Mo and I level, however, indicates an increased risk of Cu, Se, and Br-induced liver and kidney toxicity. Further in-depth studies are warranted to elucidate the underlying mechanisms of the observed associations. Regular biomonitoring of elemental exposures is also indispensable to regulate pollution in consideration of the long-term health effects of mixed-elements exposure in children.
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Affiliation(s)
- Shakil Mahmood
- Department of Biochemistry and Molecular Biology, Jahangirnagar University, Savar, Dhaka, 1342, Bangladesh; Department of Biochemistry, Gonoshasthaya Samaj Vittik Medical College, Gono Bishwabidyalay (University), Dhaka, 1344, Bangladesh
| | - E M Tanvir
- School of Pharmacy, The University of Queensland, Brisbane, Queensland, 4072, Australia; Institute of Food & Radiation Biology, Atomic Energy Research Establishment, Bangladesh Atomic Energy Commission, Savar, Dhaka, 1349, Bangladesh
| | - Tatiana Komarova
- Inorganic Chemistry Laboratory, Queensland Public Health and Scientific Services, Coopers Plains, Queensland, 4108, Australia
| | - Md Nazrul Islam
- Queensland Alliance for Environmental Health Sciences, The University of Queensland, Brisbane, Queensland, 4102, Australia; Department of Applied Chemistry and Chemical Engineering, University of Chittagong, Chittagong, 4331, Bangladesh
| | - Mahbuba Khatun
- Department of Biochemistry and Molecular Biology, Gono Bishwabidyalay (University), Dhaka, 1344, Bangladesh
| | - Md Fuad Hossain
- Department of Biochemistry and Molecular Biology, Gono Bishwabidyalay (University), Dhaka, 1344, Bangladesh
| | - Jack C Ng
- Queensland Alliance for Environmental Health Sciences, The University of Queensland, Brisbane, Queensland, 4102, Australia
| | - Karen M Whitfield
- School of Pharmacy, The University of Queensland, Brisbane, Queensland, 4072, Australia; Pharmacy Department, Royal Brisbane and Women's Hospital, Metro North Health Services District, Herston, Queensland, 4029, Australia
| | - Md Sabir Hossain
- Department of Biochemistry and Molecular Biology, Jahangirnagar University, Savar, Dhaka, 1342, Bangladesh
| | - Md Ibrahim Khalil
- Department of Biochemistry and Molecular Biology, Jahangirnagar University, Savar, Dhaka, 1342, Bangladesh.
| | - P Nicholas Shaw
- School of Pharmacy, The University of Queensland, Brisbane, Queensland, 4072, Australia.
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5
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Zhou Q, Cui J, Liu Y, Gu L, Teng X, Tang Y. EGCG alleviated Mn exposure-caused carp kidney damage via trpm2-NLRP3-TNF-α-JNK pathway: Oxidative stress, inflammation, and tight junction dysfunction. FISH & SHELLFISH IMMUNOLOGY 2023; 134:108582. [PMID: 36754155 DOI: 10.1016/j.fsi.2023.108582] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 01/29/2023] [Accepted: 02/02/2023] [Indexed: 05/12/2023]
Abstract
Manganese (Mn), an essential trace metal element in organisms. However, with extensive use of Mn in industry and agriculture, Mn becomes a heavy metal pollutant in water. (-)-epigallocatechin gallate (EGCG), an tea polyphenols, can alleviate metal toxicity. Kidney is an important detoxifying organ, but toxic mechanism of Mn to kidneys is unclear, which needs further research. Carp is an Asian important economical species for fisheries and a biological model for studying environmental toxicology. Thus, we established excess Mn and EGCG-supplemented carp model to explore molecular mechanism of EGCG alleviating Mn-caused carp kidney damage. In this experiment, we set a control group (the Con group), a Mn treatment group (the Mn group, 90 mg/L Mn), a EGCG supplement group (the EG group, 75 mg/kg EGCG), and a combined group (the Mn + EG group, 90 mg/L Mn and 75 mg/kg EGCG). Transcriptome, qRT-PCR, kit, and morphology method results indicated that excess Mn caused oxidative stress, inflammatory damage, and tight junction dysfunction in carp kidneys. Excess Mn-triggered oxidative stress caused tight junction dysfunction via trpm2-NLRP3-TNF-α-JNK pathway and inflammation. EGCG reversed the harm of Mn to fish through the above mechanism. The findings of this study provided the evidence of EGCG-alleviated Mn poisoning and offered new ideas for reducing heavy metal environmental pollution risk.
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Affiliation(s)
- Qin Zhou
- College of Animal Science and Technology, Northeast Agricultural University, China
| | - Jiawen Cui
- College of Animal Science and Technology, Northeast Agricultural University, China
| | - Yuhang Liu
- College of Animal Science and Technology, Northeast Agricultural University, China
| | - Lepeng Gu
- College of Animal Science and Technology, Northeast Agricultural University, China
| | - Xiaohua Teng
- College of Animal Science and Technology, Northeast Agricultural University, China.
| | - You Tang
- Electrical and Information Engineering College, Jilin Agricultural Science and Technology University, China.
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6
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Dehghani A, Pourjafari F, Koohkan F, Haghpanh T, Pourjafari F, Sheibani V, Afarinesh MR. L-carnitine attenuates acoustic startle reflex dysfunction in adult male rats exposed to mancozeb. Toxicol Ind Health 2023; 39:115-126. [PMID: 36650049 DOI: 10.1177/07482337231151739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The fungicide mancozeb increases oxygen-free radicals in the central nervous system. As an antioxidant, L-carnitine protects DNA and cell membranes from damage caused by oxygen-free radicals. The present study investigated how L-carnitine affected the acoustic startle response (ASR) in rats exposed to mancozeb. In this experimental study, male Wistar rats were gavaged orally with mancozeb (500, 1000, and 2000 mg/kg), L-carnitine (100, 200, and 400 mg/kg), or L-carnitine (200 mg/kg) + mancozeb (500 mg/kg) three times in 1 week. In the sham group, saline (0.9%, 10 mL/kg) was gavaged at a volume equivalent to that of the drugs. The control group did not receive any treatment. The results showed that locomotor activity and the percentage of prepulse inhibition in the mancozeb groups decreased compared to the sham group while these parameters increased in the L-carnitine group (200 mg/kg) compared to sham rats. In conclusion, mancozeb may increase the risk factor for cognitive diseases such as schizophrenia in people exposed to it while pretreatment with L-carnitine can attenuate the toxic effect.
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Affiliation(s)
- Ali Dehghani
- Department of Medical Genetics, Faculty of Medical Sciences, 48503Tarbiat Modares University, Tehran, Iran
| | - Farimah Pourjafari
- Department of Biology, Faculty of Science, 196469University of Bojnord, Bojnord, Iran
| | - Faeze Koohkan
- Neuroscience Research Center, Institute of Neuropharmacology48463Kerman University of Medical Sciences, Kerman, Iran
| | - Tahereh Haghpanh
- Anatomical Sciences Department, School of Medicine, 48463Kerman University of Medical Sciences, Kerman, Iran
| | - Fahimeh Pourjafari
- Anatomical Sciences Department, School of Medicine, 48463Kerman University of Medical Sciences, Kerman, Iran
| | - Vahid Sheibani
- Neuroscience Research Center, Institute of Neuropharmacology48463Kerman University of Medical Sciences, Kerman, Iran
| | - Mohammad Reza Afarinesh
- Neuroscience Research Center, Institute of Neuropharmacology48463Kerman University of Medical Sciences, Kerman, Iran
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7
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Nascimento S, Brucker N, Göethel G, Sauer E, Peruzzi C, Gauer B, Tureta E, Flesch I, Cestonaro L, Pierre TS, Gioda A, Garcia SC. Children Environmentally Exposed to Agrochemicals in Rural Areas Present Changes in Oxidative Status and DNA Damage. Biol Trace Elem Res 2022; 200:3511-3518. [PMID: 34668114 DOI: 10.1007/s12011-021-02950-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 10/03/2021] [Indexed: 11/26/2022]
Abstract
Rural children are exposed to several chemicals. This study evaluated the environmental co-exposure of rural children to cholinesterase inhibitor insecticides and metals/metalloids, and the resulting oxidative stress and DNA damage. Seventy-two children (5 to 16 years old) were studied at two different moments: period 1, when agrochemicals were less used, and period 2, when agrochemicals were extensively used in agriculture. Biomonitoring was performed by evaluating butyrylcholinesterase (BuChE) activity in serum; arsenic (As), chromium (Cr), lead (Pb), and nickel (Ni) levels in blood; malondialdehyde (MDA) in plasma; glutathione peroxidase (GSH-Px) and glutathione S-transferase (GST) activities in whole blood; non-protein thiol levels in erythrocytes; and micronuclei (MN) assay in exfoliated buccal cells. Cr and As levels were higher than the reference values in both periods, and Ni levels were higher than the reference values in period 2 alone. BuChE activity was inhibited in period 2 compared with period 1. In period 2, there was an increase in endogenous antioxidants and a decrease in MDA, probably demonstrating a compensatory mechanism as a response to increasing xenobiotics. Also in period 2, the MN frequency increased and BuChE and As were positively associated, suggesting co-exposure. On the other hand, in period 1, it was observed that Cr, Ni, and Pb blood levels were negatively associated with GSH-Px and GST, while MDA was positively associated with As levels. Our findings demonstrated an imbalance in endogenous antioxidants, contributing to genotoxicity and lipoperoxidation, probably in response to exposure to xenobiotics, especially carcinogenic elements (Cr, As, and Ni).
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Affiliation(s)
- Sabrina Nascimento
- Laboratory of Toxicology (LATOX), Department of Analysis, Faculty of Pharmacy, Federal University of Rio Grande Do Sul, Rua São Luis 150-Anexo II, Santa Cecília, Porto Alegre, RS, CEP, 90610-000, Brazil
- Graduate Program in Pharmaceutical Sciences, Federal University of Rio Grande Do Sul, Porto Alegre, RS, Brazil
| | - Natália Brucker
- Graduate Program in Pharmacology, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Gabriela Göethel
- Laboratory of Toxicology (LATOX), Department of Analysis, Faculty of Pharmacy, Federal University of Rio Grande Do Sul, Rua São Luis 150-Anexo II, Santa Cecília, Porto Alegre, RS, CEP, 90610-000, Brazil
- Graduate Program in Pharmaceutical Sciences, Federal University of Rio Grande Do Sul, Porto Alegre, RS, Brazil
| | - Elisa Sauer
- Laboratory of Toxicology (LATOX), Department of Analysis, Faculty of Pharmacy, Federal University of Rio Grande Do Sul, Rua São Luis 150-Anexo II, Santa Cecília, Porto Alegre, RS, CEP, 90610-000, Brazil
| | - Caroline Peruzzi
- Laboratory of Toxicology (LATOX), Department of Analysis, Faculty of Pharmacy, Federal University of Rio Grande Do Sul, Rua São Luis 150-Anexo II, Santa Cecília, Porto Alegre, RS, CEP, 90610-000, Brazil
- Graduate Program in Pharmaceutical Sciences, Federal University of Rio Grande Do Sul, Porto Alegre, RS, Brazil
| | - Bruna Gauer
- Laboratory of Toxicology (LATOX), Department of Analysis, Faculty of Pharmacy, Federal University of Rio Grande Do Sul, Rua São Luis 150-Anexo II, Santa Cecília, Porto Alegre, RS, CEP, 90610-000, Brazil
| | - Emanuela Tureta
- Laboratory of Toxicology (LATOX), Department of Analysis, Faculty of Pharmacy, Federal University of Rio Grande Do Sul, Rua São Luis 150-Anexo II, Santa Cecília, Porto Alegre, RS, CEP, 90610-000, Brazil
| | - Ingrid Flesch
- Laboratory of Toxicology (LATOX), Department of Analysis, Faculty of Pharmacy, Federal University of Rio Grande Do Sul, Rua São Luis 150-Anexo II, Santa Cecília, Porto Alegre, RS, CEP, 90610-000, Brazil
| | - Larissa Cestonaro
- Laboratory of Toxicology (LATOX), Department of Analysis, Faculty of Pharmacy, Federal University of Rio Grande Do Sul, Rua São Luis 150-Anexo II, Santa Cecília, Porto Alegre, RS, CEP, 90610-000, Brazil
- Graduate Program in Pharmaceutical Sciences, Federal University of Rio Grande Do Sul, Porto Alegre, RS, Brazil
| | - Tatiana Saint' Pierre
- Department of Chemistry, Pontifícia Universidade Católica Do Rio de Janeiro, (PUC-Rio), Rio de Janeiro, RJ, Brazil
| | - Adriana Gioda
- Department of Chemistry, Pontifícia Universidade Católica Do Rio de Janeiro, (PUC-Rio), Rio de Janeiro, RJ, Brazil
| | - Solange Cristina Garcia
- Laboratory of Toxicology (LATOX), Department of Analysis, Faculty of Pharmacy, Federal University of Rio Grande Do Sul, Rua São Luis 150-Anexo II, Santa Cecília, Porto Alegre, RS, CEP, 90610-000, Brazil.
- Graduate Program in Pharmaceutical Sciences, Federal University of Rio Grande Do Sul, Porto Alegre, RS, Brazil.
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8
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Shilnikova N, Karyakina N, Farhat N, Ramoju S, Cline B, Momoli F, Mattison D, Jensen N, Terrell R, Krewski D. Biomarkers of environmental manganese exposure. Crit Rev Toxicol 2022; 52:325-343. [PMID: 35894753 DOI: 10.1080/10408444.2022.2095979] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
We conducted a critical review on biomarkers of environmental manganese (Mn) exposure to answer the following questions: 1) are there reliable biomarkers of internal Mn exposure (Mn in biological matrices) associated with external metrics of Mn exposure (Mn in environmental media)? and 2) are there accurate reference values (RVs) for Mn in biological matrices? Three bibliographic databases were searched for relevant references and identified references were screened by two independent reviewers. Of the 6342 unique references identified, 86 articles were retained for data abstraction. Our analysis of currently available evidence suggests that Mn levels in blood and urine are not useful biomarkers of Mn exposure in non-occupational settings. The strength of the association between Mn in environmental media and saliva was variable. Findings regarding the utility of hair Mn as a biomarker of environmental Mn exposure are inconsistent. Measurements of Mn in teeth are technically challenging and findings on Mn in tooth components are scarce. In non-occupationally exposed individuals, bone Mn measurements using in vivo neutron activation analysis (IVNAA) are associated with large uncertainties. Findings suggest that Mn in nails may reflect Mn in environmental media and discriminate between groups of individuals exposed to different environmental Mn levels, although more research is needed. Currently, there is no strong evidence for any biological matrix as a valid biomarker of Mn exposure in non-occupational settings. Because of methodological limitations in studies aimed at derivation of RVs for Mn in biological materials, accurate RVs are scarce.
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Affiliation(s)
- Natalia Shilnikova
- Risk Sciences International, Ottawa, Canada.,McLaughlin Centre for Population Health Risk Assessment, University of Ottawa, Ottawa, Canada
| | - Nataliya Karyakina
- Risk Sciences International, Ottawa, Canada.,McLaughlin Centre for Population Health Risk Assessment, University of Ottawa, Ottawa, Canada
| | - Nawal Farhat
- Risk Sciences International, Ottawa, Canada.,McLaughlin Centre for Population Health Risk Assessment, University of Ottawa, Ottawa, Canada.,School of Mathematics and Statistics, Carleton University, Ottawa, Canada
| | | | | | - Franco Momoli
- Risk Sciences International, Ottawa, Canada.,School of Epidemiology and Public Health, University of Ottawa, Ottawa, Canada
| | - Donald Mattison
- Risk Sciences International, Ottawa, Canada.,School of Epidemiology and Public Health, University of Ottawa, Ottawa, Canada.,Arnold School of Public Health, University of South Carolina, Columbia, SC, USA
| | - Natalie Jensen
- Risk Sciences International, Ottawa, Canada.,School of Epidemiology and Public Health, University of Ottawa, Ottawa, Canada
| | - Rowan Terrell
- Risk Sciences International, Ottawa, Canada.,School of Epidemiology and Public Health, University of Ottawa, Ottawa, Canada
| | - Daniel Krewski
- Risk Sciences International, Ottawa, Canada.,McLaughlin Centre for Population Health Risk Assessment, University of Ottawa, Ottawa, Canada.,School of Mathematics and Statistics, Carleton University, Ottawa, Canada.,School of Epidemiology and Public Health, University of Ottawa, Ottawa, Canada
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9
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Carvalho CF, Santos-Lima C, Souza-Marques B, de Mendonça Filho EJ, Lorenzo RG, França RJAF, Araújo-Dos-Santos B, Veloso TJ, Rodrigues JLG, Araújo CFS, Dos Santos NR, Bandeira MJ, Anjos ALS, Mergler D, Abreu N, Menezes-Filho JA. Executive functions in school-aged children exposed to airborne manganese: A multilevel analysis. ENVIRONMENTAL RESEARCH 2022; 210:112940. [PMID: 35182597 DOI: 10.1016/j.envres.2022.112940] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 02/07/2022] [Accepted: 02/08/2022] [Indexed: 06/14/2023]
Abstract
Neuropsychological alterations have been identified in populations heavily exposed to metals with neurotoxic potential, such as manganese (Mn). This study examined the associations between Mn environmental exposure in school-aged children and executive functions, using structural equation modeling. Children, aged between 7 and 12 years (N = 181), were recruited from four elementary schools located in a region that is under the influence of atmospheric emissions from a ferro-manganese alloy plant in the municipality of Simões Filho, Bahia, Brazil. The following cognitive functions were evaluated: Intelligence, Inhibitory Control, Cognitive Flexibility, Verbal and Design Fluency, Verbal and Visual Working Memory and Attention. We performed structural equation modeling to identify the following executive functions latent variables: working memory, inhibitory control and cognitive flexibility. We further analyzed the relations between executive functions and Mn measured in hair (MnH) and toenails (MnTn) with linear mixed models, after controlling for co-variables. A positive effect at the individual level on working memory, inhibition control and cognitive flexibility was observed with MnTn after controlling for co-variables, but no association was found with MnH levels. However, children attending school most environmentally exposed to Mn emissions, which had the highest rate of Mn dust deposition, had the poorest scores on working memory. These findings suggest both benefits and risk of Mn on children's cognitive development.
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Affiliation(s)
- Chrissie F Carvalho
- Laboratório de Neuropsicologia Cognitiva e Escolar, Department of Psychology, Federal University of Santa Catarina, Brazil; Clinical and Cognitive Neuropsychological Research Laboratory, Institute of Psychology, Federal University of Bahia, Brazil; Graduate Program in Psychology, Federal University of Santa Catarina, Brazil.
| | - Cassio Santos-Lima
- Clinical and Cognitive Neuropsychological Research Laboratory, Institute of Psychology, Federal University of Bahia, Brazil; Graduate Program in Psychology, Institute of Psychology, Federal University of Bahia, Brazil
| | - Breno Souza-Marques
- Clinical and Cognitive Neuropsychological Research Laboratory, Institute of Psychology, Federal University of Bahia, Brazil; Graduate Program in Medicine and Health, Faculty of Medicine, Federal University of Bahia, Brazil
| | | | - Rodrigo G Lorenzo
- Clinical and Cognitive Neuropsychological Research Laboratory, Institute of Psychology, Federal University of Bahia, Brazil
| | - Ricardo J A F França
- Clinical and Cognitive Neuropsychological Research Laboratory, Institute of Psychology, Federal University of Bahia, Brazil; Graduate Program in Psychobiology, Federal University of São Paulo, Brazil
| | - Bianca Araújo-Dos-Santos
- Clinical and Cognitive Neuropsychological Research Laboratory, Institute of Psychology, Federal University of Bahia, Brazil
| | - Tainã J Veloso
- Clinical and Cognitive Neuropsychological Research Laboratory, Institute of Psychology, Federal University of Bahia, Brazil
| | - Juliana L G Rodrigues
- Graduate Program in Pharmacy, College of Pharmacy, Federal University of Bahia, Brazil
| | - Cecília F S Araújo
- Graduate Program in Pharmacy, College of Pharmacy, Federal University of Bahia, Brazil
| | - Nathália R Dos Santos
- Graduate Program in Pharmacy, College of Pharmacy, Federal University of Bahia, Brazil
| | - Matheus J Bandeira
- Graduate Program in Pharmacy, College of Pharmacy, Federal University of Bahia, Brazil
| | - Ana Laura S Anjos
- Graduate Program in Pharmacy, College of Pharmacy, Federal University of Bahia, Brazil
| | - Donna Mergler
- Centre de Recherche Interdisciplinaire sur la Biologie, la Santé, la Société et l'Environnement (CINBIOSE), Université du Québec a Montreal, Canada
| | - Neander Abreu
- Clinical and Cognitive Neuropsychological Research Laboratory, Institute of Psychology, Federal University of Bahia, Brazil; Graduate Program in Psychology, Institute of Psychology, Federal University of Bahia, Brazil
| | - José A Menezes-Filho
- Graduate Program in Pharmacy, College of Pharmacy, Federal University of Bahia, Brazil
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Oppenheimer AV, Bellinger DC, Coull BA, Weisskopf MG, Korrick SA. Prenatal exposure to chemical mixtures and working memory among adolescents. ENVIRONMENTAL RESEARCH 2022; 205:112436. [PMID: 34843721 PMCID: PMC8760169 DOI: 10.1016/j.envres.2021.112436] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 10/15/2021] [Accepted: 11/23/2021] [Indexed: 05/06/2023]
Abstract
Working memory is the ability to keep information in one's mind and mentally manipulate it. Decrements in working memory play a key role in many behavioral and psychiatric disorders, therefore identifying modifiable environmental risk factors for such decrements is important for mitigating these disorders. There is some evidence that prenatal exposure to individual chemicals may adversely impact working memory among children, but few studies have explored the association of co-exposure to multiple chemicals with this outcome in adolescence, a time when working memory skills undergo substantial development. We investigated the association of organochlorines (DDE, HCB, PCBs) and metals (lead, manganese) measured in cord serum and cord blood, respectively, with working memory measured with the Wide Range Assessment of Memory and Learning, 2nd Edition among 373 adolescents living near a Superfund site in New Bedford, Massachusetts. We used Bayesian Kernel Machine Regression (BKMR) and linear regression analyses and assessed effect modification by sex and prenatal social disadvantage. In BKMR models, we observed an adverse joint association of the chemical mixture with Verbal, but not Symbolic, Working Memory. In co-exposure and covariate-adjusted linear regression models, a twofold increase in cord blood manganese was associated with lower working memory scaled scores, with a stronger association with Verbal Working Memory (difference = -0.75; 95% CI: -1.29, -0.20 points) compared to Symbolic Working Memory (difference = -0.44; 95% CI: -1.00, 0.12 points). There was little evidence of effect modification by sex and some evidence associating organochlorine pesticides with poorer working memory scores among those with greater prenatal social disadvantage. This study provided evidence of an adverse joint association of a chemical mixture with a verbal working memory task among adolescents, as well as an adverse association of prenatal manganese exposure with working memory.
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Affiliation(s)
- Anna V Oppenheimer
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
| | - David C Bellinger
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Psychiatry, Boston Children's Hospital, Boston, MA, USA
| | - Brent A Coull
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Marc G Weisskopf
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Susan A Korrick
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Channing Division of Network Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
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11
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Heng YY, Asad I, Coleman B, Menard L, Benki-Nugent S, Hussein Were F, Karr CJ, McHenry MS. Heavy metals and neurodevelopment of children in low and middle-income countries: A systematic review. PLoS One 2022; 17:e0265536. [PMID: 35358213 PMCID: PMC8970501 DOI: 10.1371/journal.pone.0265536] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 03/03/2022] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND The presence of harmful environmental exposures, which disproportionately affects low-and-middle income countries (LMICs), contributes to >25% of deaths and diseases worldwide and detrimentally affects child neurodevelopment. Few resources succinctly summarize the existing literature on this topic. Our objective is to systematically review and characterize the evidence regarding the relationship between heavy metals and neurodevelopment of children in LMICs. METHODS We conducted a medical librarian-curated search on multiple online databases to identify articles that included individuals <18 years living in a LMIC, quantitatively measured exposure to a heavy metal (either prenatal or postnatal), and used a standardized measurement of neurodevelopment (i.e. cognitive, language, motor, and behavior). Reviews, editorials, or case studies were excluded. Results were analyzed qualitatively, and quality was assessed. RESULTS Of the 18,043 screened articles, 298 full-text articles were reviewed, and 100 articles met inclusion criteria. The included studies represented data from 19 LMICs, only one of which was classified as a low-income country. Ninety-four percent of postnatal lead and all postnatal manganese studies showed a negative association with metal exposure and neurodevelopment, which were the strongest relationships among the metals studied. Postnatal exposure of mercury was associated with poor neurodevelopment in only half of studies. Limited data on postnatal arsenic and cadmium suggests an association with worse neurodevelopment. Findings were mixed for prenatal arsenic and lead, although some evidence supports that the neurotoxicity of lead was amplified in the presence of manganese. CONCLUSIONS AND POTENTIAL IMPACT We found that lead and manganese appear to consistently have a detrimental effect on the neurodevelopment of children, and more evidence is needed for mercury, arsenic, and cadmium. Better characterization of these effects can motivate and inform prioritization of much needed international policies and programs to reduce heavy metal exposures for young children within LMICs.
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Affiliation(s)
- Yi Yan Heng
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana, United States of America
| | - Iqra Asad
- School of Science, Indiana University-Purdue University Indianapolis, Indianapolis, Indiana, United States of America
| | - Bailey Coleman
- School of Health and Human Sciences, Indiana University-Purdue University Indianapolis, Indianapolis, Indiana, United States of America
| | - Laura Menard
- Ruth Lilly Medical Library, Indiana University School of Medicine, Indianapolis, Indiana, United States of America
| | - Sarah Benki-Nugent
- Department of Global Health, University of Washington, Seattle, Washington, United States of America
| | - Faridah Hussein Were
- Department of Chemistry, College of Biological and Physical Sciences of the University of Nairobi, Nairobi, Kenya
| | - Catherine J. Karr
- Department of Environmental and Occupational Health Sciences, Department of Pediatrics, University of Washington, Seattle, Washington, United States of America
| | - Megan S McHenry
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana, United States of America
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12
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Du R, Luo L, Hudson LG, Nozadi S, Lewis J. An adjusted partial least squares regression framework to utilize additional exposure information in environmental mixture data analysis. J Appl Stat 2022. [DOI: 10.1080/02664763.2022.2043254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Ruofei Du
- Biostatistics Shared Resource, University of New Mexico Comprehensive Cancer Center, Albuquerque, NM, USA
- Department of Internal Medicine, University of New Mexico, Albuquerque, NM, USA
| | - Li Luo
- Biostatistics Shared Resource, University of New Mexico Comprehensive Cancer Center, Albuquerque, NM, USA
- Department of Internal Medicine, University of New Mexico, Albuquerque, NM, USA
| | - Laurie G. Hudson
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico, Albuquerque, NM, USA
| | - Sara Nozadi
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico, Albuquerque, NM, USA
- Community Environmental Health Program, University of New Mexico, Albuquerque, NM, USA
| | - Johnnye Lewis
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico, Albuquerque, NM, USA
- Community Environmental Health Program, University of New Mexico, Albuquerque, NM, USA
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13
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Tan Y, Cheng H, Su C, Chen P, Yang X. PI3K/Akt Signaling Pathway Ameliorates Oxidative Stress-Induced Apoptosis upon Manganese Exposure in PC12 Cells. Biol Trace Elem Res 2022; 200:749-760. [PMID: 33772736 DOI: 10.1007/s12011-021-02687-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 03/21/2021] [Indexed: 12/16/2022]
Abstract
Manganese (Mn)-induced neurotoxicity has aroused public concerns for many years, but its precise mechanism is still poorly understood. Herein, we report the impacts of the phosphatidylinositol 3-kinase/protein kinase B (PI3K/Akt) signaling pathway in mediating neurological effects induced by manganese sulfate (MnSO4) exposure in PC12 cells. In this study, cells were treated with MnSO4 for 24 h in the absence or presence of LY294002 (a special inhibitor of PI3K). We investigated cell viability and apoptosis signals, as well as levels of superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), catalase (CAT), and malondialdehyde (MDA). The mRNA levels of B-cell lymphoma 2 (Bcl-2), Bcl-2-associated X protein (Bax), and Caspase-3 were also quantified through real-time quantitative PCR (RT-qPCR); protein levels of serine/threonine protein kinase (Akt) and forkhead box O3A (Foxo3a) were determined by western blot. Increasing of MnSO4 doses led to decreased SOD, GSH-Px, and CAT activities, while the level of MDA was upregulated. Moreover, cell apoptosis was significantly increased, as the mRNA of Bcl-2 and Caspase-3 was significantly decreased, while Bax mRNA was increased. Phosphorylated Akt (p-Akt) and Foxo3a (p-Foxo3a) were upregulated in a dose-dependent manner. In addition, LY294002 pretreatment reduced the activity of SOD, GSH-Px, and CAT but elevated MDA levels. Meanwhile, LY294002 pretreatment also increased cell apoptosis given the upregulated Bax and Caspase-3 mRNAs and decreased Bcl-2 mRNA. In summary, the PI3K/Akt signaling pathway can be activated by MnSO4 exposure and mediate MnSO4-induced neurotoxicity.
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Affiliation(s)
- Yanli Tan
- Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, 530021, Guangxi, China
- Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Nanning, Guangxi, China
- Department of Occupational Health and Environmental Health, School of Public Health, Guangxi Medical University, No. 22 Shuangyong Road, Nanning, 530021, Guangxi, China
| | - Hong Cheng
- Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, 530021, Guangxi, China
- Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Nanning, Guangxi, China
- Department of Occupational Health and Environmental Health, School of Public Health, Guangxi Medical University, No. 22 Shuangyong Road, Nanning, 530021, Guangxi, China
| | - Cheng Su
- Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, 530021, Guangxi, China
- Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Nanning, Guangxi, China
- Department of Occupational Health and Environmental Health, School of Public Health, Guangxi Medical University, No. 22 Shuangyong Road, Nanning, 530021, Guangxi, China
| | - Pan Chen
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY, 10461, USA
| | - Xiaobo Yang
- Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, 530021, Guangxi, China.
- Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Nanning, Guangxi, China.
- Department of Occupational Health and Environmental Health, School of Public Health, Guangxi Medical University, No. 22 Shuangyong Road, Nanning, 530021, Guangxi, China.
- Department of Public Health, School of Medicine, Guangxi University of Science and Technology, Liuzhou, Guangxi, China.
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14
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Wang Y, Yu Z, Fan Z, Fang Y, He L, Peng M, Chen Y, Hu Z, Zhao K, Zhang H, Liu C. Cardiac developmental toxicity and transcriptome analyses of zebrafish (Danio rerio) embryos exposed to Mancozeb. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 226:112798. [PMID: 34592528 DOI: 10.1016/j.ecoenv.2021.112798] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 09/12/2021] [Accepted: 09/15/2021] [Indexed: 06/13/2023]
Abstract
Mancozeb (MZ), an antibacterial pesticide, has been linked to reproductive toxicity, neurotoxicity, and endocrine disruption. However, whether MZ has cardiactoxicity is unclear. In this study, the cardiotoxic effects of exposure to environment-related MZ concentrations ranging from 1.88 μM to 7.52 μM were evaluated at the larval stage of zebrafish. Transcriptome sequencing predicted the mechanism of MZ-induced cardiac developmental toxicity in zebrafish by enrichment analysis of Kyoto Encyclopedia of Genes and Genomes (KEGG) and Gene Ontology (GO). Consistent with morphological changes, the osm, pfkfb3, foxh1, stc1, and nrarpb genes may effect normal development of zebrafish heart by activating NOTCH signaling pathways, resulting in pericardial edema, myocardial fibrosis, and congestion in the heart area. Moreover, differential gene expression analysis indicated that cyp-related genes (cyp1c2 and cyp3c3) were significantly upregulated after MZ treatment, which may be related to apoptosis of myocardial cells. These results were verified by real-time quantitative RT-qPCR and acridine orange staining. Our findings suggest that MZ-mediated cardiotoxic development of zebrafish larvae may be related to the activation of Notch and apoptosis-related signaling pathways.
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Affiliation(s)
- Yongfeng Wang
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Hubei 430030, PR China.
| | - Zhiquan Yu
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Hubei 430030, PR China.
| | - Zunpan Fan
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Hubei 430030, PR China.
| | - Yiwei Fang
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Hubei 430030, PR China.
| | - Liting He
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Hubei 430030, PR China.
| | - Meili Peng
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Hubei 430030, PR China.
| | - Yuanyao Chen
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Hubei 430030, PR China.
| | - Zhiyong Hu
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Hubei 430030, PR China.
| | - Kai Zhao
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Hubei 430030, PR China.
| | - Huiping Zhang
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Hubei 430030, PR China.
| | - Chunyan Liu
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Hubei 430030, PR China.
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15
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Shen M, Zhang C, Yi X, Guo J, Xu S, Huang Z, He M, Chen X, Luo D, Yang F. Association of multi-metals exposure with intelligence quotient score of children: A prospective cohort study. ENVIRONMENT INTERNATIONAL 2021; 155:106692. [PMID: 34148013 DOI: 10.1016/j.envint.2021.106692] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 06/02/2021] [Accepted: 06/03/2021] [Indexed: 05/23/2023]
Abstract
BACKGROUND Associations between most single metals and children's intelligence quotient (IQ) scores have been evaluated in previous studies. However, associations between multi-metal exposures and children's IQ scores have not been analyzed. OBJECTIVES To assess the joint effects of lead (Pb), manganese (Mn), antimony (Sb), tin (Sn) and titanium (Ti) co-exposure on children's IQ scores. METHODS A prospective cohort study was conducted in Shimen and Huayuan, Hunan Province, China. Urine metals levels were measured by inductively coupled plasma mass spectrometry (ICP-MS) at baseline. Children's IQ scores were repeatedly measured at baseline and follow-up following the method of Raven's Standard Progressive Matrices (SPM) and standardized as z scores. We fitted linear regression models and Bayesian kernel machine regression (BKMR) models to investigate the associations of metal levels with children's IQ scores after adjusting for covariates. RESULTS A total of 633 participants aged 7-10 years completed the survey. Urinary Pb (β = -0.028, P = 0.022) and urinary Ti (β = -0.0003, P = 0.001) were inversely associated with children's IQ scores. The BKMR analyses revealed significant negative overall effects of the five metals on children's IQ scores when all the metals were above their median levels, while significant positive associations were shown when all the metal concentrations were below their median levels. The model also showed negative trends of Sn and Ti on children's IQ. Furthermore, Ti and Sn had a synergistic relationship, with a decline in IQ score when Sn exposure was relatively high. The urinary Sn concentration was significantly higher but the urinary Ti concentration was significantly lower in participants from the Shimen area than in those from the Huayuan area. Decreasing trends of the overall effects were observed in both the Shimen and Huayuan areas. CONCLUSION Our findings revealed that multi-metal exposures caused a decline in children's IQ scores according to traditional linear regression models and the BKMR model. Our results provide some evidence of the association between multi-metal exposure and children's IQ. Meanwhile, interactions between multi-metal exposures on children's IQ should be given more attention.
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Affiliation(s)
- Minxue Shen
- Department of Social Medicine and Health Management, Xiangya School of Public Health, Central South University, Changsha, China; Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.
| | - Chengcheng Zhang
- Department of Social Medicine and Health Management, Xiangya School of Public Health, Central South University, Changsha, China; Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, China
| | - Xiping Yi
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, China
| | - Jian Guo
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, China
| | - Shuaishuai Xu
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, China
| | - Zhijun Huang
- Center of Clinical Pharmacology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Meian He
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiang Chen
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.
| | - Dan Luo
- Department of Social Medicine and Health Management, Xiangya School of Public Health, Central South University, Changsha, China.
| | - Fei Yang
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, China; Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, School of Public Health, Hengyang Medical College, University of South China, Hengyang 421001, China.
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16
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Brucker N, Menezes C, Charão MF, da Silva LC, Sant'anna Oliveira TS, Menezes JM, Muller I, Gioda A, de Carvalho BRF, de Castro Paz Calheiros O, Rizzetti TM, Zanella R, Garcia SC. Bioassays to screen the toxicity in drinking water samples collected in Brazilian rural area. Toxicol Res (Camb) 2021; 10:856-867. [PMID: 34484677 DOI: 10.1093/toxres/tfab072] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 06/26/2021] [Accepted: 07/08/2021] [Indexed: 11/12/2022] Open
Abstract
Agriculture activities have increased the concentration of pesticides and metals in the environment. The excessive use of pesticides can generate an environmental impact and contribute to the development of human diseases. This study aimed to determine the presence of pesticides and metals in water samples collected in the Brazilian rural area in two different periods (before and after pesticide application) and to evaluate the alternative bioassays Lactuca sativa, Allium cepa, and Caenorhabditis elegans to monitoring toxicity in human drinking water samples. Eight sites in the rural area were selected and water samples were collected in two different periods of the year (before and after pesticide application). The presence of the pesticides was determinated by ultra-high performance liquid chromatography-tandem mass spectrometry and metals by inductively coupled plasma mass spectrometry. The potential toxicity of the water samples was performed with three different alternatives in vivo models (L. sativa, A. cepa, and C. elegans). Fifty-seven pesticides were analyzed and, according to the results, the most found ones were clomazone, atrazine, tebuconazole, metconazole, pyrimethanil, and carbofuran-3-hydroxide, which is a metabolic degradation product of insecticide carbofuran. The most detected metals were Cu, Cr, Mg, Fe, and Mn. The assays with L. sativa and A. cepa showed alterations in the period after pesticide application, while C. elegans presented changes in both periods compared to the same collection sites. These results indicate that bioassays, especially C. elegans, could be complementary and useful tools for monitoring the toxicity in drinking water samples.
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Affiliation(s)
- Natália Brucker
- Graduate Program in Pharmacology, Federal University of Santa Maria, Santa Maria, Rio Grande do Sul 97105-900, Brazil
| | - Charlene Menezes
- Department of Industrial Pharmacy, Federal University of Santa Maria, Santa Maria, Rio Grande do Sul 97105-900, Brazil
| | - Mariele Feiffer Charão
- Graduate Program on Toxicology and Analytical Toxicology, University Feevale, Novo Hamburgo, Rio Grande do Sul 93525-075, Brazil
| | - Laura Cé da Silva
- Graduate Program on Toxicology and Analytical Toxicology, University Feevale, Novo Hamburgo, Rio Grande do Sul 93525-075, Brazil
| | | | - Júlia M Menezes
- Graduate Program on Toxicology and Analytical Toxicology, University Feevale, Novo Hamburgo, Rio Grande do Sul 93525-075, Brazil
| | - Isadora Muller
- Graduate Program on Toxicology and Analytical Toxicology, University Feevale, Novo Hamburgo, Rio Grande do Sul 93525-075, Brazil
| | - Adriana Gioda
- Department of Chemistry, Pontifícia Universidade Católica do Rio de Janeiro, PUC-Rio, Rio de Janeiro 22451-900, Brazil
| | | | - Octávio de Castro Paz Calheiros
- Department of Physiology and Pharmacology, Federal University of Santa Maria, Santa Maria, Rio Grande do Sul 97105-900, Brazil
| | - Tiele Medianeira Rizzetti
- Laboratory of Pesticide Residue Analysis (LARP), Chemistry Department, Federal University of Santa Maria, Santa Maria, Rio Grande do Sul 97105-900, Brazil
| | - Renato Zanella
- Laboratory of Pesticide Residue Analysis (LARP), Chemistry Department, Federal University of Santa Maria, Santa Maria, Rio Grande do Sul 97105-900, Brazil
| | - Solange Cristina Garcia
- Graduate Program in Pharmaceutical Sciences, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul 90610-000, Brazil
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17
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Gandhi D, Rudrashetti AP, Rajasekaran S. The impact of environmental and occupational exposures of manganese on pulmonary, hepatic, and renal functions. J Appl Toxicol 2021; 42:103-129. [PMID: 34237170 DOI: 10.1002/jat.4214] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 06/14/2021] [Accepted: 06/14/2021] [Indexed: 12/15/2022]
Abstract
Manganese (Mn) is an essential trace element for humans, but long-term environmental or occupational exposures can lead to numerous health problems. Although many studies have identified an association between Mn exposures and neurological abnormalities, emerging data suggest that occupationally and environmentally relevant levels of Mn may also be linked to multiple organ dysfunction in the general population. In this regard, many experimental and clinical studies provide support for a causal link between Mn exposure and structural and functional changes that are responsible for organ dysfunction in major organs like lung, liver, and kidney. The underlying mechanisms suggested to Mn toxicity include altered activities of the components of intracellular signaling cascades, oxidative stress, apoptosis, affected cell cycle regulation, autophagy, angiogenesis, and an inflammatory response. We further discussed the sources and possible mechanisms of Mn absorption and distribution in different organs. Finally, treatment strategies available for treating Mn toxicity as well as directions for future studies were discussed.
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Affiliation(s)
- Deepa Gandhi
- Department of Biochemistry, ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | | | - Subbiah Rajasekaran
- Department of Biochemistry, ICMR-National Institute for Research in Environmental Health, Bhopal, India
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Interrelationships Between Oxidative Stress, Cytokines, and Psychotic Symptoms and Executive Functions in Patients With Chronic Schizophrenia. Psychosom Med 2021; 83:485-491. [PMID: 34080586 DOI: 10.1097/psy.0000000000000931] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
OBJECTIVE Accumulating evidence has demonstrated that the pathophysiology of schizophrenia is involved in various abnormalities in oxidative stress markers and cytokines closely related to synaptic plasticity. However, the interactive effects among key cytokines, oxidative stress, and executive dysfunction and symptoms of schizophrenia have not been investigated yet. METHODS A total of 189 patients with chronic schizophrenia and 60 controls were recruited in the current study. Tumor necrosis factor α (TNF-α), interleukin (IL)-8, IL-6, and IL-2 levels; catalase, glutathione peroxidase, and superoxide dismutase (SOD) activities; and malondialdehyde (MDA) levels were determined in patients and controls. Executive function was evaluated by the Wisconsin card sorting tests, the verbal fluency tests, and the Stroop word-color test. Clinical symptoms were evaluated by the Positive and Negative Syndrome Scale. RESULTS Relative to the controls, the patients had lower activities of SOD and glutathione peroxidase and levels of TNF-α, but higher levels of MDA, IL-8, IL-6, and IL-2 (all p values < .05). A significant negative relationship between SOD activity and IL-8 levels was found only in patients (β = -0.44, p = .008). Furthermore, we found that an interactive effect of low TNF-α level and high MDA level was associated with negative symptoms (β = -0.02, p = .01). Moreover, the interactive effects of IL-8 and MDA or IL-8 and SOD were correlated with executive function only in patients (β = 0.23, p = .02; β = 0.09, p = .03). CONCLUSIONS Our findings suggest that the interrelationships between oxidative stress markers and cytokines occur in schizophrenia patients, which may be the basis of their pathological mechanisms underlying clinical symptoms and cognitive dysfunction.
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Batschauer AR, Souza TL, Manuitt Brito PE, Neto FF, Oliveira Ribeiro CA, Ortolani-Machado CF. Behavioral and neurochemical effects in mice after one-generation exposure to low doses of manganese: Focus on offspring development. Chem Biol Interact 2021; 345:109532. [PMID: 34058180 DOI: 10.1016/j.cbi.2021.109532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 05/04/2021] [Accepted: 05/17/2021] [Indexed: 11/28/2022]
Abstract
The risk of exposure to toxic metals is a known concern to human populations. The overexposure to Mn can lead to a pathological condition, with symptoms similar to Parkinson's disease. Although toxicity of Mn has been reported, studies in neonates are scarce but necessary, as Mn can cross biological barriers. The present study evaluated if chronic perinatal exposure to Mn at low doses lead to neurotoxic effects in mice, after direct and indirect exposure. Couples of mice were exposed to Mn (0.013, 0.13, and 1.3 mg kg-1.day-1) for 60 days prior to mating, as well as during gestation and lactation. The offspring was distributed into two groups: animals that were not exposed after weaning - parental exposure only (PE); and animals subject to additional 60-day exposure through gavages after weaning - parental and direct exposure (PDE). Neurological effects were evaluated by Mn quantification, behavior tests and biochemical markers in the brain. PDE animals had alterations in short/long-term memory and increased anxiety-like behavior. Exposure to Mn triggered a decrease of glutathione-s-transferase and increase of cholinesterase activity in different regions of the brain. These findings highlight the risk of exposure to low doses of Mn over a generation and at early stages of development.
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Affiliation(s)
- Amândia R Batschauer
- Laboratory of Embryotoxicology, Department of Cell Biology, Federal University of Paraná, Curitiba, PR, Brazil
| | - Tugstênio L Souza
- Laboratory of Embryotoxicology, Department of Cell Biology, Federal University of Paraná, Curitiba, PR, Brazil.
| | - Patrícia E Manuitt Brito
- Laboratory of Cell Toxicology, Department of Cell Biology, Federal University of Paraná, Curitiba, PR, Brazil
| | - Francisco Filipak Neto
- Laboratory of Cell Toxicology, Department of Cell Biology, Federal University of Paraná, Curitiba, PR, Brazil
| | - Ciro A Oliveira Ribeiro
- Laboratory of Cell Toxicology, Department of Cell Biology, Federal University of Paraná, Curitiba, PR, Brazil
| | - Claudia F Ortolani-Machado
- Laboratory of Embryotoxicology, Department of Cell Biology, Federal University of Paraná, Curitiba, PR, Brazil.
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20
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Dórea JG. Exposure to environmental neurotoxic substances and neurodevelopment in children from Latin America and the Caribbean. ENVIRONMENTAL RESEARCH 2021; 192:110199. [PMID: 32941839 DOI: 10.1016/j.envres.2020.110199] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 09/09/2020] [Accepted: 09/10/2020] [Indexed: 05/24/2023]
Abstract
Environmental (and occupational) exposure to neurotoxic substances is a worldwide problem that can affect children's neurodevelopment (ND). In Latin American and Caribbean (LAC) countries there are over 300 million children living under the threat of neurodevelopmental delays due to toxic environmental exposure. Large industrial centers, intense mining and agricultural activities, along with changing complex ecosystems constitute a mosaic that drives contamination of air, water and the food chain. Neurotoxic contaminants such as pesticides (organochlorines, organophosphates, carbamates, pyrethroids, neonicotinoids, and manganese fungicides), chemicals of industrial use (phthalates), and metals (Hg, Pb, Al, As, F, Cd, Mo, Mn) are at the center of environmental exposure studies. Exposure to neurotoxic substances singly or in combination with other compounds or socioeconomic stressors (maternal education, socio-economic and nutritional status) intertwined with occupational and para-occupational exposure can affect ND (motor, cognition, behavior) of children. Significant negative effects of pesticides and neurotoxic elements on ND were found in all studied countries, affecting especially the less-privileged children from laboring families. Studies showed that exposures to the neurotoxicants in human milk are secondary to their more lasting effects during prenatal exposure. This review integrates exposure (prenatal and breastfeeding), metabolism, and ND effects of neurotoxicants. It highlights the overwhelming evidence showing that current levels of exposures are hazardous and detrimental to children's ND in LAC countries. The evidence indicates that a reduction in neurotoxicant exposure is essential to protect children's ND. Therefore, it is urgent to adopt policies and actions that prevent and remediate region-specific children's ND issues.
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Affiliation(s)
- José G Dórea
- Universidade de Brasília, Brasília, 70919-970, DF, Brazil.
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21
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Yi M, Ma Y, Zhu S, Luo C, Chen Y, Wang Q, Deng H. Comparative proteomic analysis identifies biomarkers for renal aging. Aging (Albany NY) 2020; 12:21890-21903. [PMID: 33159023 PMCID: PMC7695359 DOI: 10.18632/aging.104007] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 08/14/2020] [Indexed: 12/24/2022]
Abstract
Proteomics have long been applied into characterization of molecular signatures in aging. Due to different methods and instrumentations employed for proteomic analysis, inter-dataset validation needs to be performed to identify potential biomarkers for aging. In this study, we used comparative proteomics analysis to profile age-associated changes in proteome and glutathionylome in mouse kidneys. We identified 108 proteins that were differentially expressed in young and aged mouse kidneys in three different datasets; from these, 27 proteins were identified as potential renal aging biomarkers, including phosphoenolpyruvate carboxykinase (Pck1), CD5 antigen-like protein (Cd5l), aldehyde dehydrogenase 1 (Aldh1a1), and uromodulin. Our results also showed that peroxisomal proteins were significantly downregulated in aged mice, whereas IgGs were upregulated, suggesting that peroxisome deterioration might be a hallmark for renal aging. Glutathionylome analysis demonstrated that downregulation of catalase and glutaredoxin-1 (Glrx1) significantly increased protein glutathionylation in aged mice. In addition, nicotinamide mononucleotide (NMN) administration significantly increased the number of peroxisomes in aged mouse kidneys, indicating that NMN enhanced peroxisome biogenesis, and suggesting that it might be beneficial to reduce kidney injuries. Together, our data identify novel potential biomarkers for renal aging, and provide a valuable resource for understanding the age-associated changes in kidneys.
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Affiliation(s)
- Meiqi Yi
- MOE Key Laboratory of Bioinformatics, Center for Synthetic and Systematic Biology, School of Life Sciences, Tsinghua University, Beijing, China
| | - Yingying Ma
- MOE Key Laboratory of Bioinformatics, Center for Synthetic and Systematic Biology, School of Life Sciences, Tsinghua University, Beijing, China
| | - Songbiao Zhu
- MOE Key Laboratory of Bioinformatics, Center for Synthetic and Systematic Biology, School of Life Sciences, Tsinghua University, Beijing, China
| | - Chengting Luo
- MOE Key Laboratory of Bioinformatics, Center for Synthetic and Systematic Biology, School of Life Sciences, Tsinghua University, Beijing, China.,Beijing Chaoyang Hospital Affiliated to Capital Medical University, Beijing, China
| | - Yuling Chen
- MOE Key Laboratory of Bioinformatics, Center for Synthetic and Systematic Biology, School of Life Sciences, Tsinghua University, Beijing, China
| | - Qingtao Wang
- Beijing Chaoyang Hospital Affiliated to Capital Medical University, Beijing, China
| | - Haiteng Deng
- MOE Key Laboratory of Bioinformatics, Center for Synthetic and Systematic Biology, School of Life Sciences, Tsinghua University, Beijing, China
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22
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Gao P, Tian Y, Xie Q, Zhang L, Yan Y, Xu D. Manganese exposure induces permeability in renal glomerular endothelial cells via the Smad2/3-Snail-VE-cadherin axis. Toxicol Res (Camb) 2020; 9:683-692. [PMID: 33178429 DOI: 10.1093/toxres/tfaa067] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 07/19/2020] [Accepted: 08/03/2020] [Indexed: 12/22/2022] Open
Abstract
Manganese (Mn) is an essential micronutrient. However, it is well established that Mn overexposure causes nervous system diseases. In contrast, there are few reports on the effects of Mn exposure on glomerular endothelium. In the present study, the potential effects of Mn exposure on glomerular endothelium were evaluated. Sprague Dawley rats were used as a model of Mn overexposure by intraperitoneal injection of MnCl2·H2O at 25 mg/kg body weight. Mn exposure decreased expression of vascular endothelial-cadherin, a key component of adherens junctions, and increased exudate from glomeruli in Sprague Dawley rats. Human renal glomerular endothelial cells were cultured with different concentration of Mn. Exposure to 0.2 mM Mn increased permeability of human renal glomerular endothelial cell monolayers and decreased vascular endothelial-cadherin expression without inducing cytotoxicity. In addition, Mn exposure increased phosphorylation of mothers against decapentaplegic homolog 2/3 and upregulated expression of zinc finger protein SNAI1, a negative transcriptional regulator of vascular endothelial-cadherin. Our data suggest Mn exposure may contribute to development of glomerular diseases by inducing permeability of glomerular endothelium.
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Affiliation(s)
- Peng Gao
- Laboratory of Microvascular Medicine, Medical Research Center, Shandong Provincial Qianfoshan Hospital, The First Affiliated Hospital of Shandong First Medical University, 16766 Jingshi Road, Jinan 250014, Shandong, China
| | - Yutian Tian
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, 18877 Jingshi Road, Jinan 250062, Shandong, China
| | - Qi Xie
- Laboratory of Microvascular Medicine, Medical Research Center, Shandong Provincial Qianfoshan Hospital, The First Affiliated Hospital of Shandong First Medical University, 16766 Jingshi Road, Jinan 250014, Shandong, China
| | - Liang Zhang
- College of Life Sciences, Shandong Provincial Key Laboratory of Animal Resistance Biology, Institute of Biomedical Sciences, Shandong Normal University, 88 East Wenhua Road, Jinan 250014, Shandong, China
| | - Yongjian Yan
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, 18877 Jingshi Road, Jinan 250062, Shandong, China
| | - Dongmei Xu
- Department of Nephrology, Shandong Provincial Qianfoshan Hospital, The First Affiliated Hospital of Shandong First Medical University, 16766 Jingshi Road, Jinan 250014, Shandong, China
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23
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Liu W, Xin Y, Li Q, Shang Y, Ping Z, Min J, Cahill CM, Rogers JT, Wang F. Biomarkers of environmental manganese exposure and associations with childhood neurodevelopment: a systematic review and meta-analysis. Environ Health 2020; 19:104. [PMID: 33008482 PMCID: PMC7531154 DOI: 10.1186/s12940-020-00659-x] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 09/22/2020] [Indexed: 05/17/2023]
Abstract
BACKGROUND Although prior studies showed a correlation between environmental manganese (Mn) exposure and neurodevelopmental disorders in children, the results have been inconclusive. There has yet been no consistent biomarker of environmental Mn exposure. Here, we summarized studies that investigated associations between manganese in biomarkers and childhood neurodevelopment and suggest a reliable biomarker. METHODS We searched PubMed and Web of Science for potentially relevant articles published until December 31th 2019 in English. We also conducted a meta-analysis to quantify the effects of manganese exposure on Intelligence Quotient (IQ) and the correlations of manganese in different indicators. RESULTS Of 1754 citations identified, 55 studies with 13,388 subjects were included. Evidence from cohort studies found that higher manganese exposure had a negative effect on neurodevelopment, mostly influencing cognitive and motor skills in children under 6 years of age, as indicated by various metrics. Results from cross-sectional studies revealed that elevated Mn in hair (H-Mn) and drinking water (W-Mn), but not blood (B-Mn) or teeth (T-Mn), were associated with poorer cognitive and behavioral performance in children aged 6-18 years old. Of these cross-sectional studies, most papers reported that the mean of H-Mn was more than 0.55 μg/g. The meta-analysis concerning H-Mn suggested that a 10-fold increase in hair manganese was associated with a decrease of 2.51 points (95% confidence interval (CI), - 4.58, - 0.45) in Full Scale IQ, while the meta-analysis of B-Mn and W-Mn generated no such significant effects. The pooled correlation analysis revealed that H-Mn showed a more consistent correlation with W-Mn than B-Mn. Results regarding sex differences of manganese associations were inconsistent, although the preliminary meta-analysis found that higher W-Mn was associated with better Performance IQ only in boys, at a relatively low water manganese concentrations (most below 50 μg/L). CONCLUSIONS Higher manganese exposure is adversely associated with childhood neurodevelopment. Hair is the most reliable indicator of manganese exposure for children at 6-18 years of age. Analysis of the publications demonstrated sex differences in neurodevelopment upon manganese exposure, although a clear pattern has not yet been elucidated for this facet of our study.
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Affiliation(s)
- Weiwei Liu
- Department of Nutrition, Precision Nutrition Innovation Center, School of Public Health, Zhengzhou University, Zhengzhou, China
| | - Yongjuan Xin
- Department of Nutrition, Precision Nutrition Innovation Center, School of Public Health, Zhengzhou University, Zhengzhou, China
| | - Qianwen Li
- Department of Nutrition, Precision Nutrition Innovation Center, School of Public Health, Zhengzhou University, Zhengzhou, China
| | - Yanna Shang
- Department of Nutrition, Precision Nutrition Innovation Center, School of Public Health, Zhengzhou University, Zhengzhou, China
| | - Zhiguang Ping
- Department of Nutrition, Precision Nutrition Innovation Center, School of Public Health, Zhengzhou University, Zhengzhou, China
| | - Junxia Min
- The First Affiliated Hospital, School of Public Health, Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, China
| | - Catherine M. Cahill
- Neurochemistry Laboratory, Department of Psychiatry-Neuroscience, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA USA
| | - Jack T. Rogers
- Neurochemistry Laboratory, Department of Psychiatry-Neuroscience, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA USA
| | - Fudi Wang
- Department of Nutrition, Precision Nutrition Innovation Center, School of Public Health, Zhengzhou University, Zhengzhou, China
- The First Affiliated Hospital, School of Public Health, Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, China
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24
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Liu X, Song J, Zheng Z, Guan H, Nan X, Zhang N. Effects of Excess Manganese on the Oxidative Status, and the Expression of Inflammatory Factors and Heat Shock Proteins in Cock Kidneys. Biol Trace Elem Res 2020; 197:639-650. [PMID: 31858402 DOI: 10.1007/s12011-019-02003-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Accepted: 12/04/2019] [Indexed: 12/24/2022]
Abstract
Manganese (Mn) can have adverse effects on organisms as a result of heavy or chronic exposure, including neurological damage. This study examined the effects of chronic exposure to manganese chloride (MnCl2) on various biochemical indices of inflammatory cytokines, antioxidant enzymes, and heat shock proteins (HSPs) in the kidneys of Hy-line cocks. The exposures were carried out using 600, 900, or 1800 mg/kg doses of MnCl2 administered for periods of 30, 60, and 90 days. The exposure experiments indicated that Mn concentration in the kidneys increased over time and that Mn exposure potentially caused ultrastructural changes to the cells. Treatment with Mn was seen to increase the levels of various biomarkers, including protein carbonyl group content; DNA-protein cross-links (DPCs) and the mRNA expression of inflammatory factors such as tumor necrosis factor-α (TNF-α), nuclear factor-κB p50 (NF-κB p50), cyclooxygenase-2 (COX-2), and prostaglandin E synthase (PGES). The levels of other biomarkers were found to decrease as a result of Mn exposure, including the mRNA expression of oxidation indexes such as copper-zinc superoxide dismutase (CuZn-SOD), manganese superoxide dismutase (Mn-SOD), glutathione peroxidase (GSH-Px), and catalase (CAT). Accompanying the above changes, Mn exposure was seen to result in the relative mRNA and protein expression of HSPs 90, 70, 60, 40, and 27 increasing significantly. Thus, in cock kidneys, HSPs attenuated the biological changes caused by toxic exposure to Mn. This mechanism needs further exploration.
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Affiliation(s)
- Xiaofei Liu
- Key laboratory of food science and engineering, Harbin University of Commerce, Harbin, 150076, China.
| | - Jie Song
- Key laboratory of food science and engineering, Harbin University of Commerce, Harbin, 150076, China
| | - Zhihui Zheng
- Key laboratory of food science and engineering, Harbin University of Commerce, Harbin, 150076, China
| | - Huanan Guan
- Key laboratory of food science and engineering, Harbin University of Commerce, Harbin, 150076, China
| | - Xuemei Nan
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Na Zhang
- Key laboratory of food science and engineering, Harbin University of Commerce, Harbin, 150076, China
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25
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Shen Y, Yin Z, Lv Y, Luo J, Shi W, Fang J, Shi X. Plasma element levels and risk of chronic kidney disease in elderly populations (≥ 90 Years old). CHEMOSPHERE 2020; 254:126809. [PMID: 32334258 PMCID: PMC7296863 DOI: 10.1016/j.chemosphere.2020.126809] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 04/02/2020] [Accepted: 04/13/2020] [Indexed: 05/05/2023]
Abstract
Associations between plasma elements and chronic kidney disease (CKD) among the elderly are poorly understood. In this cross-sectional study, we explored the associations between exposure to four plasma elements and CKD in elderly people aged ≥90 years in longevity areas in China. We measured plasma selenium, manganese, iron, and zinc levels and used logistic regression models to investigate associations between CKD and these four plasma elements after adjusting for confounding factors among 461 participants aged ≥90 years in the fifth wave of the Chinese Longitudinal Healthy Longevity Study (CLHLS) conducted in 2009. The median plasma selenium, manganese, iron, and zinc levels were 120.51 μg/L, 26.64 μg/L, 2880.52 μg/L, and 1882.42 μg/L in the CKD group and 108.76 μg/L, 31.55 μg/L, 4512.00 μg/L, and 2294.24 μg/L in the non-CKD group, respectively. Single- and multiple-element multivariable models showed that plasma manganese, iron, and zinc were negatively associated with CKD. In the multiple-element multivariable models, the adjusted odds ratios for CKD were 0.48 (95% confidence interval [CI]: 0.27-0.86) for the second highest quartile of manganese, 0.37 (95% CI: 0.21-0.68) and 0.36 (95% CI: 0.19-0.65) for the third highest and highest quartiles of iron, respectively, and 0.53 (95% CI: 0.29-0.94) for the highest quartile of zinc, compared with the lowest quartiles of these three elements. Plasma manganese, iron, and zinc levels protect against CKD in elderly people aged ≥90 years in longevity areas.
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Affiliation(s)
- Yu Shen
- National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, 100021, China; Department of Epidemiology and Biostatistics, School of Public Health, Xuzhou Medical University, Xuzhou, Jiangsu, 221004, China
| | - Zhaoxue Yin
- Division of Chronic Disease Control and Community Health, Chinese Center for Disease Control and Prevention, Beijing, 102206, China
| | - Yuebin Lv
- National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, 100021, China
| | - Jiesi Luo
- Division of Chronic Disease Control and Community Health, Chinese Center for Disease Control and Prevention, Beijing, 102206, China
| | - Wenhui Shi
- Division of Chronic Disease Control and Community Health, Chinese Center for Disease Control and Prevention, Beijing, 102206, China
| | - Jianlong Fang
- National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, 100021, China.
| | - Xiaoming Shi
- National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, 100021, China
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26
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Cestonaro LV, Garcia SC, Nascimento S, Gauer B, Sauer E, Göethel G, Peruzzi C, Nardi J, Fão N, Piton Y, Braga W, Rocha R, Saint'Pierre T, Gioda A, Arbo MD. Biochemical, hematological and immunological parameters and relationship with occupational exposure to pesticides and metals. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:29291-29302. [PMID: 32436094 DOI: 10.1007/s11356-020-09203-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Accepted: 05/06/2020] [Indexed: 06/11/2023]
Abstract
This study aimed to evaluate biomarkers of exposure to cholinesterase inhibitors insecticides (AChE and BuChE activities) and metals (As, Cd, Cr, Mn, Ni, and Pb blood levels) and their associations with biochemical, hematological, and immunological parameters in farmers from Southern Brazil. One hundred and sixteen individuals were divided into two groups: 62 farmers (exposed group) and 54 subjects non-occupationally exposed (NOE) to agrochemicals. Erythrocyte (AChE) and serum (BuChE) cholinesterases activities were significantly reduced as well as blood Cd and Pb levels were increased in farmers when compared to NOE group (p < 0.05). Farmers presented increased glucose and urea levels compared to NOE group, which were inversely associated with AChE and positively correlated with Cd (p < 0.05), respectively. In addition, Cd was inversely associated with the hematological cells counts, which were significantly reduced in farmers (p < 0.05). C3 complement was higher in farmers and was positively associated with blood Pb (p < 0.05). Surface protein expression analysis revealed a downregulation of LFA-1 and ICAM-1 in farmers. Inverse associations were found between LFA-1 and blood As, Cr, and Ni levels (p < 0.05). Taken together, our results pointed to a relationship between agrochemicals and metals exposure and biochemical, hematological, and immunological disorders that can lead to several chronic conditions.
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Affiliation(s)
- Larissa V Cestonaro
- Laboratório de Toxicologia (LATOX), Departamento de Análises, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Rua São Luís, 150 - Anexo II, Porto Alegre, RS, CEP: 90620-170, Brazil
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Solange Cristina Garcia
- Laboratório de Toxicologia (LATOX), Departamento de Análises, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Rua São Luís, 150 - Anexo II, Porto Alegre, RS, CEP: 90620-170, Brazil.
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil.
| | - Sabrina Nascimento
- Laboratório de Toxicologia (LATOX), Departamento de Análises, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Rua São Luís, 150 - Anexo II, Porto Alegre, RS, CEP: 90620-170, Brazil
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Bruna Gauer
- Laboratório de Toxicologia (LATOX), Departamento de Análises, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Rua São Luís, 150 - Anexo II, Porto Alegre, RS, CEP: 90620-170, Brazil
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Elisa Sauer
- Laboratório de Toxicologia (LATOX), Departamento de Análises, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Rua São Luís, 150 - Anexo II, Porto Alegre, RS, CEP: 90620-170, Brazil
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Gabriela Göethel
- Laboratório de Toxicologia (LATOX), Departamento de Análises, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Rua São Luís, 150 - Anexo II, Porto Alegre, RS, CEP: 90620-170, Brazil
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Caroline Peruzzi
- Laboratório de Toxicologia (LATOX), Departamento de Análises, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Rua São Luís, 150 - Anexo II, Porto Alegre, RS, CEP: 90620-170, Brazil
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Jessica Nardi
- Laboratório de Toxicologia (LATOX), Departamento de Análises, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Rua São Luís, 150 - Anexo II, Porto Alegre, RS, CEP: 90620-170, Brazil
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Nuryan Fão
- Laboratório de Toxicologia (LATOX), Departamento de Análises, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Rua São Luís, 150 - Anexo II, Porto Alegre, RS, CEP: 90620-170, Brazil
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Yasmin Piton
- Laboratório de Toxicologia (LATOX), Departamento de Análises, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Rua São Luís, 150 - Anexo II, Porto Alegre, RS, CEP: 90620-170, Brazil
| | - Wesley Braga
- Laboratório de Toxicologia (LATOX), Departamento de Análises, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Rua São Luís, 150 - Anexo II, Porto Alegre, RS, CEP: 90620-170, Brazil
| | - Rafael Rocha
- Departamento de Química, Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Rio de Janeiro, RJ, Brazil
| | - Tatiana Saint'Pierre
- Departamento de Química, Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Rio de Janeiro, RJ, Brazil
| | - Adriana Gioda
- Departamento de Química, Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Rio de Janeiro, RJ, Brazil
| | - Marcelo Dutra Arbo
- Laboratório de Toxicologia (LATOX), Departamento de Análises, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Rua São Luís, 150 - Anexo II, Porto Alegre, RS, CEP: 90620-170, Brazil
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
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de Andrade VL, Cota M, Serrazina D, Mateus ML, Aschner M, Dos Santos APM. Metal environmental contamination within different human exposure context- specific and non-specific biomarkers. Toxicol Lett 2020; 324:46-53. [PMID: 31935480 PMCID: PMC7083091 DOI: 10.1016/j.toxlet.2019.12.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 10/23/2019] [Accepted: 12/16/2019] [Indexed: 01/13/2023]
Abstract
Exposure to high levels of persistent pollutants, such as metal mixtures, is commonly encountered by the general population especially in industrialized countries. The aim of this work was to evaluate how metal pollution in contaminated areas is reflected in terms of biomarkers (BMs) of exposure and effect in human sub-populations living in distinct non-occupational environmental contexts. Thus, four Portuguese sub-populations living in different areas of Portugal were studied: i- the exposure of each member of these sub-populations to lead (Pb), manganese (Mn) and arsenic (As) was evaluated by determining metal levels in urine; ii- biochemical changes were assessed, establishing the levels of urinary metabolites of heme biosynthesis; iii- the ability of combinations of these BMs to predict the context of exposure of each subject was tested, as to develop a tool to identify adverse health effects in these environmentally exposed populations. Concerning the combinations of BMs, heme precursors in urine (delta-aminolevulinic acid and porphyrins), were predictive of contexts of environmental exposures, with 94.2% of the studied subjects correctly identified as to their sub-population origin. The use of non-specific BMs may affirm the exposure to Pb, Mn and As, also reflecting health effects induced by a chemical environmental mixture. Our studies affirm the difficulty in establishing a metal reference population.
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Affiliation(s)
- Vanda Lopes de Andrade
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisboa, Portugal.
| | - Madalena Cota
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisboa, Portugal; Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal.
| | - Daniela Serrazina
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisboa, Portugal; Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal.
| | - Maria Luisa Mateus
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisboa, Portugal.
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY 10461, United States.
| | - Ana Paula Marreilha Dos Santos
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisboa, Portugal.
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Owumi SE, Nwozo SO, Effiong ME, Najophe ES. Gallic acid and omega-3 fatty acids decrease inflammatory and oxidative stress in manganese-treated rats. Exp Biol Med (Maywood) 2020; 245:835-844. [PMID: 32252555 DOI: 10.1177/1535370220917643] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
IMPACT STATEMENT Humans and animals are regularly exposed to toxic chemicals with subsequent adverse effects. Manganese exposure occurs via contaminated sources; over-exposure is associated with neuronal, hepatorenal dysfunction, etc. This work advances the field of natural chemopreventive agents by reporting evidence lacking in the literature on GA and ω-3-FA obtained primarily from the diet in protecting biological beings against toxic chemicals. Individually, GA and ω-3-FA exhibit various pharmacological effects. Our findings confirm the previous reports; however, we demonstrate the additional evidence for GA and ω-3-FA in abating toxic response incumbent on oxidative damage associated with manganese exposure. These findings further underscore the relevance of GA usage in food, cosmetics-pharmaceutical industries, and ω-3-FA as a safe supplement. Dietary supplements with GA and fish oil-rich in ω-3FA may be the potential natural therapy against hepatorenal injury in individuals inadvertently or occupationally exposed to manganese, thereby, promoting human and veterinary health outcomes.
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Affiliation(s)
- Solomon E Owumi
- Cancer Research and Molecular Biology Laboratories, University of Ibadan, Ibadan 200004, Nigeria
| | - Sarah O Nwozo
- Nutritional and Industrial Biochemistry Laboratories, Department of Biochemistry, Faculty of Basic Medical Sciences, University of Ibadan, Ibadan 200004, Nigeria
| | - Magdalene E Effiong
- Nutritional and Industrial Biochemistry Laboratories, Department of Biochemistry, Faculty of Basic Medical Sciences, University of Ibadan, Ibadan 200004, Nigeria
| | - Eseroghene S Najophe
- Nutritional and Industrial Biochemistry Laboratories, Department of Biochemistry, Faculty of Basic Medical Sciences, University of Ibadan, Ibadan 200004, Nigeria
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Xu J, Zhao M, Pei L, Liu X, Wei L, Li A, Mei Y, Xu Q. Effects of heavy metal mixture exposure on hematological and biomedical parameters mediated by oxidative stress. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 705:134865. [PMID: 31841905 DOI: 10.1016/j.scitotenv.2019.134865] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 09/16/2019] [Accepted: 10/05/2019] [Indexed: 06/10/2023]
Affiliation(s)
- Jing Xu
- Department of Epidemiology and Biostatistics, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing 100005, China; Center of Environmental and Health Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100005, China
| | - Meiduo Zhao
- Department of Epidemiology and Biostatistics, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing 100005, China; Center of Environmental and Health Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100005, China
| | - Lu Pei
- Department of Epidemiology and Biostatistics, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing 100005, China; Center of Environmental and Health Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100005, China
| | - Xiaolin Liu
- Jinzhou Medical University, Jinzhou 121001, Liaoning Province, China
| | - Lanping Wei
- Jinzhou Central Hospital, Jinzhou 121001, Liaoning Province, China
| | - Ang Li
- Department of Epidemiology and Biostatistics, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing 100005, China; Center of Environmental and Health Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100005, China
| | - Yayuan Mei
- Department of Epidemiology and Biostatistics, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing 100005, China; Center of Environmental and Health Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100005, China
| | - Qun Xu
- Department of Epidemiology and Biostatistics, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing 100005, China; Center of Environmental and Health Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100005, China.
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30
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Souza TL, Batschauer AR, Brito PM, Oliveira Ribeiro CA, Martino-Andrade AJ, Ortolani-Machado CF. Multigenerational analysis of the functional status of male reproductive system in mice after exposure to realistic doses of manganese. Food Chem Toxicol 2019; 133:110763. [DOI: 10.1016/j.fct.2019.110763] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 08/09/2019] [Accepted: 08/15/2019] [Indexed: 12/16/2022]
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Butler L, Gennings C, Peli M, Borgese L, Placidi D, Zimmerman N, Hsu HHL, Coull BA, Wright RO, Smith DR, Lucchini RG, Claus Henn B. Assessing the contributions of metals in environmental media to exposure biomarkers in a region of ferroalloy industry. JOURNAL OF EXPOSURE SCIENCE & ENVIRONMENTAL EPIDEMIOLOGY 2019; 29:674-687. [PMID: 30337680 PMCID: PMC6472994 DOI: 10.1038/s41370-018-0081-6] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 09/10/2018] [Accepted: 09/18/2018] [Indexed: 05/04/2023]
Abstract
Residential proximity to ferroalloy production has been associated with increased manganese exposure, which can adversely affect health, particularly among children. Little is known, however, about which environmental samples contribute most to internal levels of manganese and other ferroalloy metals. We aimed to characterize sources of exposure to metals and evaluate the ability of internal biomarkers to reflect exposures from environmental media. In 717 Italian adolescents residing near ferromanganese industry, we examined associations between manganese, lead, chromium, and copper in environmental samples (airborne particles, surface soil, indoor/outdoor house dust) and biological samples (blood, hair, nails, saliva, urine). In multivariable regression analyses adjusted for child age and sex, a 10% increase in soil Mn was associated with increases of 3.0% (95% CI: 1.1%, 4.9%) in nail Mn and 1.6% (95% CI: -0.2%, 3.4%) in saliva Mn. Weighted-quantile-sum (WQS) regression estimated that higher soil and outdoor dust Mn accounted for most of the effect on nail Mn (WQS weights: 0.61 and 0.22, respectively, out of a total of 1.0). Higher air and soil Mn accounted for most of the effect on saliva Mn (WQS weights: 0.65 and 0.29, respectively). These findings can help inform biomarker selection in future epidemiologic studies and guide intervention strategies in exposed populations.
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Affiliation(s)
- Lindsey Butler
- Department of Environmental Health, Boston University School of Public Health, Boston, MA, USA
| | - Chris Gennings
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Marco Peli
- Department of Civil, Environmental, Architectural Engineering and Mathematics, University of Brescia, Brescia, Italy
| | - Laura Borgese
- Department of Mechanical and Industrial Engineering, University of Brescia, Brescia, Italy
| | - Donatella Placidi
- Department of Medical and Surgical Specialties, Radiological Sciences, and Public Health, University of Brescia, Brescia, Italy
| | - Neil Zimmerman
- School of Health Sciences, Purdue University, West Lafayette, IN, USA
| | - Hsiao-Hsien L Hsu
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Brent A Coull
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Robert O Wright
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Donald R Smith
- Department of Microbiology and Environmental Toxicology, University of California, Santa Cruz, CA, USA
| | - Roberto G Lucchini
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Medical and Surgical Specialties, Radiological Sciences, and Public Health, University of Brescia, Brescia, Italy
- Department of Microbiology and Environmental Toxicology, University of California, Santa Cruz, CA, USA
| | - Birgit Claus Henn
- Department of Environmental Health, Boston University School of Public Health, Boston, MA, USA.
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Peng DJ, Zhang YW, Li ZC, Li SJ, Cai M, Qin WX, Ou SY, Huang XW, Yuan ZX, Jiang YM. Preventive impacts of PAS-Na on the slow growth and activated inflammatory responses in Mn-exposed rats. J Trace Elem Med Biol 2019; 54:134-141. [PMID: 31109603 DOI: 10.1016/j.jtemb.2019.04.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Revised: 03/26/2019] [Accepted: 04/23/2019] [Indexed: 10/27/2022]
Abstract
BACKGROUND Sodium para-aminosalicylic acid (PAS-Na), an anti-tuberculosis drug, has been demonstrated its function in facilitating the Mn elimination in manganism patients and Mn-exposed models in vivo and improving the symptoms of Mn poisoning. But whether it can improve the growth retardation and inflammatory responses induced by Mn have not been reported. OBJECTIVES This study was designed to investigate the preventive effects of PAS-Na on the development of retardation and inflammatory responses in Mn-exposed rats. METHODS Male Sprague Dawley (SD) rats (8 weeks old, weighing 180 ± 20 g) were randomly divided into normal control group and Mn-exposed group in the 4 weeks experiment observation and normal control group, Mn-exposed group, PAS-Na preventive group and PAS-Na control group in the 8 weeks experiment observation. The Mn-exposed group received an intraperitoneal injection (i.p.) of 15 mg/kg MnCl2 and the normal control group i.p. physiological Saline in the same volume once a day for 4 or 8 weeks, 5 days per week. The PAS-Na preventive group i.p. 15 mg/kg MnCl2 along with back subcutaneous (s.c.) injection of 240 mg/kg PAS-Na once a day for 8 weeks, 5 days per week. PAS-Na control group received s.c. injection of 240 mg/kg PAS-Na along with i.p. injection of saline once daily. The body weight was determined once a week until the end of the experiment. The manganese contents in the blood were detected by graphite furnace atomic absorption spectrometry. The inflammatory factor levels (TNF-α, IL-1β, IL-6, and PGE2) in the blood were detected by using enzyme-linked immunosorbent assay (Elisa) and each organ taking from rats were weighed and recorded. RESULTS Mn exposure significantly suppressed the growth in rats and increased heart, liver, spleen and kidney coefficients as compared with the control group. The whole blood Mn level and serum levels of IL-1β, IL-6, PGE2, and TNF-α in sub-chronic Mn-exposure group were markedly higher than those in the control group. However, preventive treatment with PAS-Na obviously reduced the whole blood Mn level, the spleen and liver coefficients of the Mn-exposed rats. And serum levels of IL-1β and TNF-α were significantly reduced by 33.9% and 14.7% respectively in PAS-Na prevention group. CONCLUSIONS PAS-Na could improve the growth retardation and alleviate inflammatory responses in Mn-exposed rats.
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Affiliation(s)
- Dong-Jie Peng
- Department of Toxicology, School of Public Health, Guangxi Medical University, 530021, Nanning, China; Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning, China.
| | - Yu-Wen Zhang
- Department of Toxicology, School of Public Health, Guangxi Medical University, 530021, Nanning, China; Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning, China.
| | - Zhao-Cong Li
- Department of Toxicology, School of Public Health, Guangxi Medical University, 530021, Nanning, China; Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning, China.
| | - Shao-Jun Li
- Department of Toxicology, School of Public Health, Guangxi Medical University, 530021, Nanning, China; Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning, China.
| | - Mei Cai
- Department of Toxicology, School of Public Health, Guangxi Medical University, 530021, Nanning, China.
| | - Wen-Xia Qin
- Department of Toxicology, School of Public Health, Guangxi Medical University, 530021, Nanning, China; Department of Child Health, Guilin Women and Children Hospital, Guilin, China.
| | - Shi-Yan Ou
- Department of Toxicology, School of Public Health, Guangxi Medical University, 530021, Nanning, China; Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning, China.
| | - Xiao-Wei Huang
- Department of Toxicology, School of Public Health, Guangxi Medical University, 530021, Nanning, China; Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning, China.
| | - Zong-Xiang Yuan
- Department of Epidemiology and Health Statistics, School of Public Health, Guangxi Medical University, Nanning, China.
| | - Yue-Ming Jiang
- Department of Toxicology, School of Public Health, Guangxi Medical University, 530021, Nanning, China; Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning, China.
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Li Z, Yao Y, Zhang Y, Zhang Y, Shao Y, Tang C, Qu W, Zhou Y. Classification and Temporal Variability in Urinary 8-oxodG and 8-oxoGuo: Analysis by UHPLC-MS/MS. Sci Rep 2019; 9:8187. [PMID: 31160621 PMCID: PMC6547699 DOI: 10.1038/s41598-019-44240-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Accepted: 05/10/2019] [Indexed: 01/28/2023] Open
Abstract
Oxidative stress damage has been found to be associated with exposure of children to environmental pollutants, but there are few data on the variability of urinary oxidative stress biomarkers and the accuracy of biomarker concentration classification. We performed a longitudinal study in Chinese school-aged children to investigate the variability of urinary 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxodG) and 8-oxo-7,8-dihydroguanosine (8-oxoGuo) concentrations and the ability of a single first morning urine sample to assess accuracy and sensitivity of biomarkers concentration classification. After adjusting for both creatinine and specific gravity, we characterized the distribution and reproducibility of repeated measurement of 8-oxodG and 8-oxoGuo by using intraclass correlation coefficients (ICCs) derived from linear mixed model and performed surrogate category analyses to determine whether a single spot sample could accurately classify 8-oxodG and 8-oxoGuo levels. Results indicated that the geometric mean (GM) concentrations of 8-oxodG and 8-oxoGuo were 3.865 ng/mL and 5.725 ng/mL, respectively. High variability of 8-oxodG and 8-oxoGuo was observed in the single spot first morning urine sample (ICC = 0.25 and 0.18, respectively). Three repeated urinary specimens achieved sensitivity of 0.87 for 8-oxodG and 0.83 for 8-oxoGuo in low tertile and sensitivity of 0.78 in high tertile. But classification in medium tertile was less accurate for both 8-oxodG and 8-oxoGuo. In conclusion, high variability of urinary 8-oxodG and 8-oxoGuo levels results in repeated samplings needed for accurate classification.
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Affiliation(s)
- Ziqi Li
- Centers for Water and Health, Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, 200032, China
- Department of Nutrition and Food Hygiene and Chemistry, School of Public Health, Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, 200032, China
| | - Yuan Yao
- Centers for Water and Health, Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, 200032, China
- Department of Nutrition and Food Hygiene and Chemistry, School of Public Health, Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, 200032, China
| | - Yanfei Zhang
- Centers for Water and Health, Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, 200032, China
- Department of Nutrition and Food Hygiene and Chemistry, School of Public Health, Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, 200032, China
| | - Yining Zhang
- Centers for Water and Health, Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, 200032, China
- Department of Nutrition and Food Hygiene and Chemistry, School of Public Health, Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, 200032, China
| | - Yijun Shao
- Centers for Water and Health, Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, 200032, China
- Department of Nutrition and Food Hygiene and Chemistry, School of Public Health, Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, 200032, China
| | - Chuanxi Tang
- Centers for Disease Control and Prevention of Changnin distribution, Shanghai, 200050, China
| | - Weidong Qu
- Centers for Water and Health, Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, 200032, China
- Department of Environmental Health, School of Public Health, Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, 200032, China
| | - Ying Zhou
- Centers for Water and Health, Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, 200032, China.
- Department of Nutrition and Food Hygiene and Chemistry, School of Public Health, Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, 200032, China.
- Pudong New Area for Disease Control and Prevention, Fudan University Pudong Institute of Preventive Medicine, Shanghai, 200136, China.
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Leonhard MJ, Chang ET, Loccisano AE, Garry MR. A systematic literature review of epidemiologic studies of developmental manganese exposure and neurodevelopmental outcomes. Toxicology 2019; 420:46-65. [PMID: 30928475 DOI: 10.1016/j.tox.2019.03.004] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 03/10/2019] [Accepted: 03/19/2019] [Indexed: 12/27/2022]
Abstract
BACKGROUND Neurotoxic effects of high-level occupational exposure to manganese (Mn) are well established; however, whether lower-level environmental exposure to Mn in early life causes neurodevelopmental toxicity in children is unclear. METHODS A systematic literature review was conducted to identify and evaluate epidemiologic studies of specific Mn biomarkers assessed during gestation, childhood, or adolescence in association with neurodevelopmental outcomes, focusing on quantitative exposure-response estimates with specific endpoints that were assessed in multiple independent study populations. Study quality was evaluated using the revised RTI item bank and the Cochrane Risk of Bias tool, and the overall weight of epidemiologic evidence for causality was evaluated according to the Bradford Hill considerations. RESULTS Twenty-two epidemiologic studies were identified that estimated associations between early-life Mn biomarkers and neurodevelopmental outcomes. Seven of these studies provided adjusted estimates for the association with child intelligence assessed using versions of the Wechsler Intelligence Scales for Children; no other specific neurodevelopmental endpoints were assessed in more than three independent study populations each. Among the studies of child intelligence, five studies in four independent populations measured blood Mn, three studies measured hair Mn, and one measured dentin Mn. Overall, cross-sectional associations between Mn biomarkers and measures of child intelligence were mostly statistically nonsignificant but in a negative direction; however, the lone prospective cohort study found mostly null results, with some positive (favorable) associations between dentin Mn and child intelligence. Studies were methodologically limited by their cross-sectional design and potential for confounding and selection bias, as well as unaddressed questions on exposure assessment validity and biological plausibility. CONCLUSIONS The statistical associations reported in the few studies of specific Mn biomarkers and specific neurodevelopmental endpoints do not establish causal effects based on the Bradford Hill considerations. Additional prospective cohort studies of Mn biomarkers and validated neurodevelopmental outcomes, and a better understanding of the etiologic relevance of Mn biomarkers, are needed to shed light on whether environmental exposure to Mn causes adverse neurodevelopmental effects in children.
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Affiliation(s)
- Megan J Leonhard
- Exponent, Inc., Center for Health Sciences, 15375 SE 30th Place, Suite 250, Bellevue, WA 98007, United States.
| | - Ellen T Chang
- Exponent, Inc., Center for Health Sciences, 149 Commonwealth Drive, Menlo Park, CA 94025, United States.
| | - Anne E Loccisano
- Exponent, Inc., Center for Health Sciences, 1800 Diagonal Road, Suite 500, Alexandria, VA 22314, United States.
| | - Michael R Garry
- Exponent, Inc., Center for Health Sciences, 15375 SE 30th Place, Suite 250, Bellevue, WA 98007, United States.
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Nascimento S, Göethel G, Gauer B, Sauer E, Nardi J, Cestonaro L, Correia D, Peruzzi C, Mota L, Machry RV, Furlanetto TW, Saint' Pierre T, Gioda A, Arbo MD, Garcia SC. Exposure to environment chemicals and its possible role in endocrine disruption of children from a rural area. ENVIRONMENTAL RESEARCH 2018; 167:488-498. [PMID: 30142624 DOI: 10.1016/j.envres.2018.07.039] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 07/25/2018] [Accepted: 07/31/2018] [Indexed: 06/08/2023]
Abstract
Endocrine disrupting chemicals (EDCs), including pesticides and metals, are present in rural areas, endangering the health of exposed populations. This work aimed to investigate the possible association between the exposure to these xenobiotics and thyroid dysfunction in children living in a rural community of Southern Brazil. Fifty-four children aged 5-16 years participated in this study. Peripheral biomarker evaluations were performed in periods of low and high exposure to pesticides. Thyroid ultrasonography was evaluated in the high exposure period. Blood levels of chromium (Cr), manganese (Mn), mercury (Hg), and lead (Pb), as well as hair Pb levels were positively correlated with thyroid stimulating hormone (TSH) concentrations and negatively associated with free thyroxine (fT4) levels in the low exposure period. Prolactin was positively associated with hair Mn in both periods. In the ultrasound tests, the majority of children presented a normal echogenicity of thyroid. Glucose was inversely associated with the biomarker of exposure to cholinesterase inhibitor insecticides, butyrylcholinesterase (BuChE). Lipid profile was above the recommended levels in both periods. In summary, our results show that children environmentally exposed to a mixture of xenobiotics in an agricultural community may have health impairments, especially on thyroid function, dyslipidemia, and glucose homeostasis disruption.
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Affiliation(s)
- Sabrina Nascimento
- Laboratório de Toxicologia (LATOX), Departamento de Análises, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga 2752, Porto Alegre, RS, Brazil; Programa de Pós-graduação em Ciências Farmacêuticas (PPGCF), Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga 2752, Porto Alegre, RS, Brazil
| | - Gabriela Göethel
- Laboratório de Toxicologia (LATOX), Departamento de Análises, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga 2752, Porto Alegre, RS, Brazil; Programa de Pós-graduação em Ciências Farmacêuticas (PPGCF), Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga 2752, Porto Alegre, RS, Brazil
| | - Bruna Gauer
- Laboratório de Toxicologia (LATOX), Departamento de Análises, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga 2752, Porto Alegre, RS, Brazil; Programa de Pós-graduação em Ciências Farmacêuticas (PPGCF), Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga 2752, Porto Alegre, RS, Brazil
| | - Elisa Sauer
- Laboratório de Toxicologia (LATOX), Departamento de Análises, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga 2752, Porto Alegre, RS, Brazil; Programa de Pós-graduação em Ciências Farmacêuticas (PPGCF), Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga 2752, Porto Alegre, RS, Brazil
| | - Jessica Nardi
- Laboratório de Toxicologia (LATOX), Departamento de Análises, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga 2752, Porto Alegre, RS, Brazil; Programa de Pós-graduação em Ciências Farmacêuticas (PPGCF), Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga 2752, Porto Alegre, RS, Brazil
| | - Larissa Cestonaro
- Laboratório de Toxicologia (LATOX), Departamento de Análises, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga 2752, Porto Alegre, RS, Brazil; Programa de Pós-graduação em Ciências Farmacêuticas (PPGCF), Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga 2752, Porto Alegre, RS, Brazil
| | - Douglas Correia
- Laboratório de Toxicologia (LATOX), Departamento de Análises, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga 2752, Porto Alegre, RS, Brazil
| | - Caroline Peruzzi
- Laboratório de Toxicologia (LATOX), Departamento de Análises, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga 2752, Porto Alegre, RS, Brazil; Programa de Pós-graduação em Ciências Farmacêuticas (PPGCF), Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga 2752, Porto Alegre, RS, Brazil
| | - Luciano Mota
- Hospital Universitário de Santa Maria (HUSM), Universidade Federal de Santa Maria (UFSM), Av. Roraima 1000, Santa Maria, RS, Brazil
| | - Rafael V Machry
- Departamento de Medicina Clínica, Universidade Federal de Santa Maria (UFSM), Av. Roraima 1000, Santa Maria, RS, Brazil
| | - Tania W Furlanetto
- Hospital de Clínicas de Porto Alegre (HCPA), Universidade Federal do Rio Grande do Sul (UFRGS), Ramiro Barcelos 2350, Porto Alegre, RS, Brazil
| | - Tatiana Saint' Pierre
- Departamento de Química, Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Marquês de São Vicente 225, Rio de Janeiro, RJ, Brazil
| | - Adriana Gioda
- Departamento de Química, Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Marquês de São Vicente 225, Rio de Janeiro, RJ, Brazil
| | - Marcelo D Arbo
- Laboratório de Toxicologia (LATOX), Departamento de Análises, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga 2752, Porto Alegre, RS, Brazil; Programa de Pós-graduação em Ciências Farmacêuticas (PPGCF), Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga 2752, Porto Alegre, RS, Brazil
| | - Solange C Garcia
- Laboratório de Toxicologia (LATOX), Departamento de Análises, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga 2752, Porto Alegre, RS, Brazil; Programa de Pós-graduação em Ciências Farmacêuticas (PPGCF), Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga 2752, Porto Alegre, RS, Brazil.
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Physiologically-based pharmacokinetic modeling suggests similar bioavailability of Mn from diet and drinking water. Toxicol Appl Pharmacol 2018; 359:70-81. [DOI: 10.1016/j.taap.2018.09.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 09/16/2018] [Accepted: 09/17/2018] [Indexed: 12/29/2022]
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Rodrigues JLG, Araújo CFS, Dos Santos NR, Bandeira MJ, Anjos ALS, Carvalho CF, Lima CS, Abreu JNS, Mergler D, Menezes-Filho JA. Airborne manganese exposure and neurobehavior in school-aged children living near a ferro-manganese alloy plant. ENVIRONMENTAL RESEARCH 2018; 167:66-77. [PMID: 30007874 DOI: 10.1016/j.envres.2018.07.007] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Revised: 07/01/2018] [Accepted: 07/04/2018] [Indexed: 05/06/2023]
Abstract
Excessive exposure to Mn can lead to its accumulation in the brain with neurotoxic consequences. In children, elevated Mn has been associated with deficits in certain neuropsychological domains such as cognition, motor function, memory and attention, and in some instances, hyperactivity and behavioral problems. The aim of this study was to evaluate behavioral effects in school-aged children living near a ferro-manganese alloy plant and examine their association with Mn exposure. Occipital hair, toenails and blood samples were collected from 225 children (7-12 years old) enrolled in four elementary schools with different levels of exposure to Mn, based on dust Mn deposition rates. Full data set collection was completed and run from 165 children. Mn in hair (MnH), toenails (MnTn), blood (MnB) and blood lead levels (PbB) were determined by graphite furnace atomic absorption spectrometry. Children's behavior was assessed with the Child Behavior Check List (CBCL) reported by parents. Median levels and range of MnH, MnT and MnB were, respectively, 0.73 µg/g (0.16-8.79), 0.84 µg/g (0.15-9.29) and 8.98 μg/L (1.51-40.43). Median and range of PbB were 1.2 µg/dL (0.2-15.6). MnH and MnB were not associated with any scale of the CBCL behavior scores. We found a positive association between logMnTn and raw total CBCL score (β = 10.17, p = 0.034), adjusting for sex, age, maternal IQ and logPbB. Analyses using Generalized Additive Model showed non-linear associations between MnTn and externalizing behavior (p = 0.035), as well as with the related subscales: aggressive behavior (p = 0.045) and rule-breaking behavior (p = 0.024). Further positive associations were observed between MnTn and thought problems (p = 0.031) and social problems (p = 0.027). These findings corroborate previous studies showing an association between Mn exposures and externalizing behavior. Our results suggest that toenail Mn, as a biomarker of environmental exposure, is associated with disruptive behavior in children living near a ferro-manganese alloy plant.
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Affiliation(s)
- Juliana L G Rodrigues
- Laboratory of Toxicology, College of Pharmacy, Federal University of Bahia, Brazil; Graduate Program in Pharmacy, College of Pharmacy, Federal University of Bahia, Brazil.
| | - Cecília F S Araújo
- Environmental and Public Health Program, National School of Public Health, Oswald Cruz Foundation. Rio de Janeiro, Brazil.
| | - Nathália R Dos Santos
- Laboratory of Toxicology, College of Pharmacy, Federal University of Bahia, Brazil; Graduate Program in Pharmacy, College of Pharmacy, Federal University of Bahia, Brazil.
| | - Matheus J Bandeira
- Laboratory of Toxicology, College of Pharmacy, Federal University of Bahia, Brazil; Graduate Program in Pharmacy, College of Pharmacy, Federal University of Bahia, Brazil.
| | - Ana Laura S Anjos
- Laboratory of Toxicology, College of Pharmacy, Federal University of Bahia, Brazil.
| | | | - Cassio S Lima
- Institute of Psychology, Federal University of Bahia, Brazil.
| | | | - Donna Mergler
- Centre de Recherche Interdisciplinaire sur le Bien-Être, la Santé, la Société et l'Environnement (CINBIOSE), Université du Québec à Montreal, Canada.
| | - José A Menezes-Filho
- Laboratory of Toxicology, College of Pharmacy, Federal University of Bahia, Brazil; Graduate Program in Pharmacy, College of Pharmacy, Federal University of Bahia, Brazil.
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Mora AM, Córdoba L, Cano JC, Hernandez-Bonilla D, Pardo L, Schnaas L, Smith DR, Menezes-Filho JA, Mergler D, Lindh CH, Eskenazi B, van Wendel de Joode B. Prenatal Mancozeb Exposure, Excess Manganese, and Neurodevelopment at 1 Year of Age in the Infants' Environmental Health (ISA) Study. ENVIRONMENTAL HEALTH PERSPECTIVES 2018; 126:057007. [PMID: 29847083 PMCID: PMC6072008 DOI: 10.1289/ehp1955] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Revised: 04/10/2018] [Accepted: 04/24/2018] [Indexed: 05/14/2023]
Abstract
BACKGROUND Although growing evidence suggests that early-life excess manganese (Mn) impairs neurodevelopment, data on the neurodevelopmental effects of mancozeb, a fungicide containing Mn, and its main metabolite ethylenethiourea (ETU) are limited. OBJECTIVE We examined whether prenatal mancozeb exposure and excess Mn were associated with neurodevelopment in 355 1-y-old infants living near banana plantations with frequent aerial mancozeb spraying in Costa Rica. METHODS We measured urinary ETU, hair Mn, and blood Mn concentrations in samples collected 1-3 times during pregnancy from mothers enrolled in the Infants' Environmental Health (ISA) study. We then assessed neurodevelopment in their 1-y-old infants using the Bayley Scales of Infant and Toddler Development, 3rd edition (BSID-III). We estimated exposure-outcome associations using linear regression models adjusted for maternal education, parity, gestational age at birth, child age, Home Observation for Measurement of the Environment score, and location of neurodevelopmental assessment. RESULTS Median (P25-P75) urinary ETU, hair Mn, and blood Mn measured during pregnancy were 3.3 μg/L (2.4-4.9; specific gravity-corrected), 1.7 μg/g (0.9-4.1), and 24.0 μg/L (20.3-28.0), respectively. Among girls, higher ETU was associated with lower social-emotional scores [β per 10-fold increase=-7.4 points (95% CI: -15.2, 0.4)], whereas higher hair Mn was associated with lower cognitive scores [-3.0 (-6.1, 0.1)]. Among boys, higher hair Mn was associated with lower social-emotional scores [-4.6 (-8.5, -0.8)]. We observed null associations for blood Mn, language, and motor outcomes. CONCLUSIONS Our findings indicate that maternal exposure to mancozeb and excess Mn during pregnancy may have adverse and sex-specific effects on infant neurodevelopment. https://doi.org/10.1289/EHP1955.
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Affiliation(s)
- Ana María Mora
- Central American Institute for Studies on Toxic Substances (IRET), Universidad Nacional, Heredia, Costa Rica
- Center for Environmental Research and Children’s Health (CERCH), School of Public Health, University of California at Berkeley, Berkeley, California, USA
| | - Leonel Córdoba
- Central American Institute for Studies on Toxic Substances (IRET), Universidad Nacional, Heredia, Costa Rica
| | - Juan Camilo Cano
- Central American Institute for Studies on Toxic Substances (IRET), Universidad Nacional, Heredia, Costa Rica
| | | | - Larissa Pardo
- Central American Institute for Studies on Toxic Substances (IRET), Universidad Nacional, Heredia, Costa Rica
| | - Lourdes Schnaas
- Division of Research in Community Interventions, National Institute of Perinatology, Mexico City, Mexico
| | - Donald R Smith
- Department of Microbiology and Environmental Toxicology, University of California at Santa Cruz, Santa Cruz, California, USA
| | | | - Donna Mergler
- Centre for Interdisciplinary Research Centre on Health, Well-being, Society and Environment (CINBIOSE), University of Quebec in Montreal, Montreal, Quebec, Canada
| | - Christian H Lindh
- Division of Occupational and Environmental Medicine, Institute of Laboratory Medicine, Lund University, Lund, Sweden
| | - Brenda Eskenazi
- Center for Environmental Research and Children’s Health (CERCH), School of Public Health, University of California at Berkeley, Berkeley, California, USA
| | - Berna van Wendel de Joode
- Central American Institute for Studies on Toxic Substances (IRET), Universidad Nacional, Heredia, Costa Rica
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Myhre O, Låg M, Villanger GD, Oftedal B, Øvrevik J, Holme JA, Aase H, Paulsen RE, Bal-Price A, Dirven H. Early life exposure to air pollution particulate matter (PM) as risk factor for attention deficit/hyperactivity disorder (ADHD): Need for novel strategies for mechanisms and causalities. Toxicol Appl Pharmacol 2018; 354:196-214. [PMID: 29550511 DOI: 10.1016/j.taap.2018.03.015] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 02/14/2018] [Accepted: 03/12/2018] [Indexed: 12/11/2022]
Abstract
Epidemiological studies have demonstrated that air pollution particulate matter (PM) and adsorbed toxicants (organic compounds and trace metals) may affect child development already in utero. Recent studies have also indicated that PM may be a risk factor for neurodevelopmental disorders (NDDs). A pattern of increasing prevalence of attention deficit/hyperactivity disorder (ADHD) has been suggested to partly be linked to environmental pollutants exposure, including PM. Epidemiological studies suggest associations between pre- or postnatal exposure to air pollution components and ADHD symptoms. However, many studies are cross-sectional without possibility to reveal causality. Cohort studies are often small with poor exposure characterization, and confounded by traffic noise and socioeconomic factors, possibly overestimating the study associations. Furthermore, the mechanistic knowledge how exposure to PM during early brain development may contribute to increased risk of ADHD symptoms or cognitive deficits is limited. The closure of this knowledge gap requires the combined use of well-designed longitudinal cohort studies, supported by mechanistic in vitro studies. As ADHD has profound consequences for the children affected and their families, the identification of preventable risk factors such as air pollution exposure should be of high priority.
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Affiliation(s)
- Oddvar Myhre
- Department of Toxicology and Risk Assessment, Norwegian Institute of Public Health, Oslo, Norway.
| | - Marit Låg
- Department of Air pollution and Noise, Norwegian Institute of Public Health, Oslo, Norway
| | - Gro D Villanger
- Department of Child Health and Development, Norwegian Institute of Public Health, Oslo, Norway
| | - Bente Oftedal
- Department of Air pollution and Noise, Norwegian Institute of Public Health, Oslo, Norway
| | - Johan Øvrevik
- Department of Air pollution and Noise, Norwegian Institute of Public Health, Oslo, Norway
| | - Jørn A Holme
- Department of Air pollution and Noise, Norwegian Institute of Public Health, Oslo, Norway
| | - Heidi Aase
- Department of Child Health and Development, Norwegian Institute of Public Health, Oslo, Norway
| | - Ragnhild E Paulsen
- Department of Pharmaceutical Biosciences, School of Pharmacy, University of Oslo, Norway
| | - Anna Bal-Price
- European Commission, Joint Research Centre, Ispra, Italy
| | - Hubert Dirven
- Department of Toxicology and Risk Assessment, Norwegian Institute of Public Health, Oslo, Norway
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Miranda MC, Sinnes EG, Zanini GDAV, Baumgartner B, Salles JFD, Fonseca RP, Bueno OFA. Neupsilin-Inf em um Modelo de Avaliação Neuropsicológica Breve para Centros de Saúde. PSICO-USF 2018. [DOI: 10.1590/1413-82712018230109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Resumo Este estudo teve como objetivo analisar o uso do NEUPSILIN-Inf num modelo de avaliação neuropsicológica breve em crianças atendidas em um serviço assistencial. As etapas seguidas no modelo de avaliação neuropsicológica breve são: sala de espera, grupo de crianças e avaliação neuropsicológica individual. A análise da aplicabilidade do NEUPSILIN-Inf na detecção de déficits cognitivos foi realizada comparando o desempenho de 171 crianças com possíveis transtornos do neurodesenvolvimento a 358 crianças da amostra de normatização, tendo a média marginal do escore ajustado pela idade. Em todas as tarefas do NEUPSILIN-Inf, o grupo clínico mostrou desempenho inferior. O conjunto de dados do modelo de avaliação pode gerar hipóteses diagnósticas, como deficiência intelectual, possíveis quadros de transtornos da aprendizagem ou específicos de linguagem. Frente à alta escassez de atendimento público para crianças com possíveis transtornos do neurodesenvolvimento, este pode ser um modelo economicamente eficiente para centros de saúde em diversas regiões do Brasil.
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Shores DR, Everett AD. Children as Biomarker Orphans: Progress in the Field of Pediatric Biomarkers. J Pediatr 2018; 193:14-20.e31. [PMID: 29031860 PMCID: PMC5794519 DOI: 10.1016/j.jpeds.2017.08.077] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 08/04/2017] [Accepted: 08/30/2017] [Indexed: 12/20/2022]
Affiliation(s)
- Darla R Shores
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Johns Hopkins School of Medicine, Baltimore, MD.
| | - Allen D Everett
- Division of Cardiology, Department of Pediatrics, Johns Hopkins School of Medicine, Baltimore, MD
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Elemental hair analysis: A review of procedures and applications. Anal Chim Acta 2017; 992:1-23. [DOI: 10.1016/j.aca.2017.09.017] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 09/06/2017] [Accepted: 09/06/2017] [Indexed: 12/13/2022]
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Bauer JA, Claus Henn B, Austin C, Zoni S, Fedrighi C, Cagna G, Placidi D, White RF, Yang Q, Coull BA, Smith D, Lucchini RG, Wright RO, Arora M. Manganese in teeth and neurobehavior: Sex-specific windows of susceptibility. ENVIRONMENT INTERNATIONAL 2017; 108:299-308. [PMID: 28941415 PMCID: PMC5679133 DOI: 10.1016/j.envint.2017.08.013] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Revised: 08/14/2017] [Accepted: 08/22/2017] [Indexed: 05/04/2023]
Abstract
BACKGROUND Manganese (Mn) is an essential element required for growth and development, but higher body burdens have been associated with neurobehavioral decrements in children. OBJECTIVES We examined whether prenatal or postnatal Mn measured in deciduous teeth was associated with scores on a test of visuospatial learning and memory. METHODS Deciduous teeth were collected from 142 participants (ages 10-14years) residing near varied ferro‑manganese industry in Italy. Mn concentrations were measured in prenatal and postnatal tooth regions by laser ablation inductively coupled plasma mass spectrometry (ICP-MS). The Virtual Radial Arm Maze (VRAM), an animal-human analogue task, was used to assess visuospatial learning and memory. We used generalized additive, linear and zero-inflated Poisson mixed regression models to estimate associations between prenatal or postnatal Mn concentrations and repeated measures of all four VRAM outcomes: time, distance, working and reference memory errors. Effect measure modification by sex was examined in stratified models. RESULTS U-shaped associations between prenatal Mn and VRAM outcomes were observed among girls only (pGAMM=0.001 to 0.02 in stratified models). Compared to the mid-tertile of prenatal Mn, girls in the highest tertile took 7.7s [95% CI: -6.1, 21.5] longer to complete the task, traveled 2.3 maze units [0.1, 4.4] farther, and committed more working and reference memory errors (β for count ratio=1.33 [1.01, 1.83]; 1.10 [0.98, 1.24], respectively). This association was not observed among boys. In contrast, for postnatal Mn, no significant associations were found, and patterns were similar for boys and girls. CONCLUSIONS The prenatal period may be a critical window for the impact of environmental Mn on visuospatial ability and executive function, especially for females.
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Affiliation(s)
- Julia Anglen Bauer
- Department of Environmental Health, Boston University School of Public Health, Boston, MA, USA.
| | - Birgit Claus Henn
- Department of Environmental Health, Boston University School of Public Health, Boston, MA, USA
| | - Christine Austin
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Silvia Zoni
- Department of Medical and Surgical Specialties, Radiological Sciences, and Public Health, University of Brescia, Italy
| | - Chiara Fedrighi
- Department of Medical and Surgical Specialties, Radiological Sciences, and Public Health, University of Brescia, Italy
| | - Giuseppa Cagna
- Department of Medical and Surgical Specialties, Radiological Sciences, and Public Health, University of Brescia, Italy
| | - Donatella Placidi
- Department of Medical and Surgical Specialties, Radiological Sciences, and Public Health, University of Brescia, Italy
| | - Roberta F White
- Department of Environmental Health, Boston University School of Public Health, Boston, MA, USA
| | - Qiong Yang
- Department of Biostatistics, Boston University School of Public Health, Boston, MA, USA
| | - Brent A Coull
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Donald Smith
- Department of Microbiology and Environmental Toxicology, University of California, Santa Cruz, CA, USA
| | - Roberto G Lucchini
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Department of Medical and Surgical Specialties, Radiological Sciences, and Public Health, University of Brescia, Italy
| | - Robert O Wright
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Manish Arora
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
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Zheng LY, Sanders AP, Saland JM, Wright RO, Arora M. Environmental exposures and pediatric kidney function and disease: A systematic review. ENVIRONMENTAL RESEARCH 2017; 158:625-648. [PMID: 28727988 PMCID: PMC5821495 DOI: 10.1016/j.envres.2017.06.029] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 05/29/2017] [Accepted: 06/23/2017] [Indexed: 05/24/2023]
Abstract
BACKGROUND Environmental chemical exposures have been implicated in pediatric kidney disease. No appraisal of the available evidence has been conducted on this topic. METHODS We performed a systematic review of the epidemiologic studies that assessed association of environmental exposures with measures of kidney function and disease in pediatric populations. The search period went through July 2016. RESULTS We found 50 studies that met the search criteria and were included in this systematic review. Environmental exposures reviewed herein included lead, cadmium, mercury, arsenic, fluoride, aflatoxin, melamine, environmental tobacco, bisphenol A, dental procedures, phthalates, ferfluorooctanoic acid, triclosan, and thallium/uranium. Most studies assessed environmental chemical exposure via biomarkers but four studies assessed exposure via proximity to emission source. There was mixed evidence of association between metal exposures, and other non-metal environmental exposures and pediatric kidney disease and other kidney disease biomarkers. The evaluation of causality is hampered by the small numbers of studies for each type of environmental exposure, as well as lack of study quality and limited prospective evidence. CONCLUSION There is a need for well-designed epidemiologic studies of environmental chemical exposures and kidney disease outcomes.
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Affiliation(s)
- Laura Y Zheng
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, 1 Gustave L. Levy Place, New York, NY 10029, United States.
| | - Alison P Sanders
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, 1 Gustave L. Levy Place, New York, NY 10029, United States; Department of Pediatrics, Icahn School of Medicine at Mount Sinai, 1 Gustave L. Levy Place, New York, NY 10029, United States.
| | - Jeffrey M Saland
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, 1 Gustave L. Levy Place, New York, NY 10029, United States.
| | - Robert O Wright
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, 1 Gustave L. Levy Place, New York, NY 10029, United States; Department of Pediatrics, Icahn School of Medicine at Mount Sinai, 1 Gustave L. Levy Place, New York, NY 10029, United States.
| | - Manish Arora
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, 1 Gustave L. Levy Place, New York, NY 10029, United States.
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Changes in water manganese levels and longitudinal assessment of intellectual function in children exposed through drinking water. Neurotoxicology 2017; 64:118-125. [PMID: 28870865 DOI: 10.1016/j.neuro.2017.08.015] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Revised: 08/24/2017] [Accepted: 08/31/2017] [Indexed: 12/24/2022]
Abstract
BACKGROUND Manganese is commonly found in water but potential neurotoxic effects from exposure through drinking water are poorly understood. We previously reported a cross-sectional study showing that drinking water Mn concentration was associated with lower IQ in children aged 6 to 13 years. OBJECTIVE For this follow-up study, we aimed to re-assess the relation between exposure to Mn from drinking water and IQ at adolescence. In addition, we aimed to examine whether changes in drinking water Mn concentration was associated with changes in IQ scores. METHODS From the 380 children enrolled in the baseline study, 287 participated to this follow-up study conducted in average 4.4 years after. Mn concentration was measured in home tap water and children's hair. The relationships between these Mn exposure indicators and IQ scores (Weschsler Abbreviated Scale of Intelligence) at follow-up were assessed with linear regression analysis, adjusting for potential confounders. Intra-individual differences in IQ scores between the two examinations were compared for children whose Mn concentration in water remained stable between examinations, increased or decreased. RESULTS The mean age at follow-up was 13.7 years (range, 10.5 to 18.0 years). Geometric mean of Mn concentration in water at follow-up was 14.5μg/L. Higher Mn concentration in water measured at follow-up was associated with lower Performance IQ in girls (β for a 10-fold increase=-2.8, 95% confidence intervals [CI] -4.8 to -0.8) and higher Performance IQ in boys (β=3.9, 95% CI 1.4 to 6.4). IQ scores were not significantly associated with Mn concentration in hair, although similar trends as for concentration in water were observed. For children whose Mn concentration in water increased between baseline and follow-up, Performance IQ scores decreased significantly (intra-individual difference, -2.4 points). CONCLUSION Higher levels of Mn in drinking water were associated with lower Performance IQ in girls, whereas the opposite was observed in boys. These findings suggest long-term exposure to Mn through drinking water is associated differently with cognition in boys and girls.
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Nascimento SN, Göethel G, Baierle M, Barth A, Brucker N, Charão MF, Moro AM, Gauer B, Sauer E, Durgante J, Arbo MD, Thiesen FV, Pierre TDS, Gioda A, Moresco R, Garcia SC. Environmental exposure and effects on health of children from a tobacco-producing region. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:2851-2865. [PMID: 27838906 DOI: 10.1007/s11356-016-8071-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Accepted: 11/07/2016] [Indexed: 06/06/2023]
Abstract
Children may be environmentally exposed to several hazards. In order to evaluate the health of children living in a tobacco-producing region, different biomarkers of exposure and effect, as well as hematological parameters, were evaluated. Biomarkers of exposure to the following xenobiotics were assessed: pesticides, nicotine, toxic elements, and organic solvents. Oxidative damage markers malondialdehyde (MDA) and protein carbonyls (PCO), vitamin C, microalbuminuria (mALB) levels, and N-acetyl-β-D-glucosaminidase (NAG) activity were also evaluated. Peripheral blood samples and urine were collected from 40 children (6-12 years), at two different crop periods: in the beginning of pesticide applications (period 1) and in the leaf harvest (period 2). The Wilcoxon signed-rank test for paired data was used to evaluate the differences between both periods. Biomarkers of exposure cotinine in urine and blood chromium (Cr) levels were increased in period 1 when compared to period 2. Moreover, a significant reduced plasmatic activity of butyrylcholinesterase (BuChE) was observed in period 2 in relation to period 1. Blood Cr levels were above the recommended by WHO in both evaluations. The biomarkers MDA and PCO as well as the kidney dysfunction biomarker, mALB, presented levels significantly increased in period 1. Additionally, decreased lymphocytes and increased basophils were also observed. Cotinine was positively associated with PCO, and Cr was positively associated with PCO and MDA. The increased Cr levels were associated with decreased lymphocytes and increased basophils. Our findings demonstrate that children environmentally exposed to xenobiotics in rural area may present early kidney dysfunction, hematological alterations, as well as lipid and protein damages, associated with co-exposure to different xenobiotics involved in tobacco cultivation.
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Affiliation(s)
- Sabrina N Nascimento
- Laboratory of Toxicology (LATOX), Department of Analyses, Faculty of Pharmacy, Federal University of Rio Grande do Sul (UFRGS), Avenida Ipiranga 2752, Santa Cecília, Porto Alegre, RS, CEP: 90610-000, Brazil
- Post-Graduate Program in Pharmaceutical Sciences, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Gabriela Göethel
- Laboratory of Toxicology (LATOX), Department of Analyses, Faculty of Pharmacy, Federal University of Rio Grande do Sul (UFRGS), Avenida Ipiranga 2752, Santa Cecília, Porto Alegre, RS, CEP: 90610-000, Brazil
- Post-Graduate Program in Pharmaceutical Sciences, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Marília Baierle
- Laboratory of Toxicology (LATOX), Department of Analyses, Faculty of Pharmacy, Federal University of Rio Grande do Sul (UFRGS), Avenida Ipiranga 2752, Santa Cecília, Porto Alegre, RS, CEP: 90610-000, Brazil
| | - Anelise Barth
- Laboratory of Toxicology (LATOX), Department of Analyses, Faculty of Pharmacy, Federal University of Rio Grande do Sul (UFRGS), Avenida Ipiranga 2752, Santa Cecília, Porto Alegre, RS, CEP: 90610-000, Brazil
| | - Natália Brucker
- Laboratory of Toxicology (LATOX), Department of Analyses, Faculty of Pharmacy, Federal University of Rio Grande do Sul (UFRGS), Avenida Ipiranga 2752, Santa Cecília, Porto Alegre, RS, CEP: 90610-000, Brazil
| | - Mariele F Charão
- Laboratory of Toxicology (LATOX), Department of Analyses, Faculty of Pharmacy, Federal University of Rio Grande do Sul (UFRGS), Avenida Ipiranga 2752, Santa Cecília, Porto Alegre, RS, CEP: 90610-000, Brazil
- Institute of Health Sciences, Feevale University, Novo Hamburgo, RS, Brazil
| | - Angela M Moro
- Laboratory of Toxicology (LATOX), Department of Analyses, Faculty of Pharmacy, Federal University of Rio Grande do Sul (UFRGS), Avenida Ipiranga 2752, Santa Cecília, Porto Alegre, RS, CEP: 90610-000, Brazil
| | - Bruna Gauer
- Laboratory of Toxicology (LATOX), Department of Analyses, Faculty of Pharmacy, Federal University of Rio Grande do Sul (UFRGS), Avenida Ipiranga 2752, Santa Cecília, Porto Alegre, RS, CEP: 90610-000, Brazil
- Post-Graduate Program in Pharmaceutical Sciences, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Elisa Sauer
- Laboratory of Toxicology (LATOX), Department of Analyses, Faculty of Pharmacy, Federal University of Rio Grande do Sul (UFRGS), Avenida Ipiranga 2752, Santa Cecília, Porto Alegre, RS, CEP: 90610-000, Brazil
- Post-Graduate Program in Pharmaceutical Sciences, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Juliano Durgante
- Laboratory of Toxicology (LATOX), Department of Analyses, Faculty of Pharmacy, Federal University of Rio Grande do Sul (UFRGS), Avenida Ipiranga 2752, Santa Cecília, Porto Alegre, RS, CEP: 90610-000, Brazil
| | - Marcelo D Arbo
- Laboratory of Toxicology (LATOX), Department of Analyses, Faculty of Pharmacy, Federal University of Rio Grande do Sul (UFRGS), Avenida Ipiranga 2752, Santa Cecília, Porto Alegre, RS, CEP: 90610-000, Brazil
- Post-Graduate Program in Pharmaceutical Sciences, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Flavia V Thiesen
- Faculty of Pharmacy, Pontifical Catholic University of Rio Grande do Sul (PUCRS), Porto Alegre, RS, Brazil
| | - Tatiana D Saint' Pierre
- Department of Chemistry, Pontifical Catholic University of Rio de Janeiro (PUC-Rio), Rio de Janeiro, RJ, Brazil
| | - Adriana Gioda
- Department of Chemistry, Pontifical Catholic University of Rio de Janeiro (PUC-Rio), Rio de Janeiro, RJ, Brazil
| | - Rafael Moresco
- Laboratory of Clinical Biochemistry, Department of Clinical and Toxicological Analyses, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Solange Cristina Garcia
- Laboratory of Toxicology (LATOX), Department of Analyses, Faculty of Pharmacy, Federal University of Rio Grande do Sul (UFRGS), Avenida Ipiranga 2752, Santa Cecília, Porto Alegre, RS, CEP: 90610-000, Brazil.
- Post-Graduate Program in Pharmaceutical Sciences, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil.
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47
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Abstract
Manganese (Mn) is an essential metal that plays a fundamental role for brain development and functioning. Environmental exposure to Mn may lead to accumulation in the basal ganglia and development of Parkinson-like disorders. The most recent research is focusing on early-life overexposure to Mn and the potential vulnerability of younger individuals to Mn toxicity also in regard to cognitive and executive functions through the involvement of the frontal cortex.Neurodevelopmental disturbances are increasing in the society, and understanding the potential role of environmental determinants is a key for prevention. Therefore, assessing the environmental sources of Mn exposure and the mechanisms of developmental neurotoxicity and defining appropriate biomarkers of exposure and early functional alterations represent key issues to improve and address preventive strategies. These themes will be reviewed in this chapter.
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